154 Ocean Trivia Questions (Ranked From Easiest to Hardest)

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154 Ocean Trivia Questions Ranked From Easiest to Hardest (Updated for 2024)

1. What toothed whale with a falsely incriminating name belongs to the oceanic dolphin family? Also known as an orca, they have black bodies with a white underside and patches near the eye.
   
   Answer: killer whale
   
   
2. Lox is a fillet of the brined version of what type of sea critter? We're looking for a specific type of fish, not just the word "fish."
   
   Answer: Salmon
   
   
3. Cephalofoil is the formal term for the distinctly shaped noggins of what 360-degree seeing shark group?
   
   Answer: Hammerhead
   
   
4. What "T" word is technically a wave generated by an undersea earthquake?
   
   Answer: Tsunami
   
   
5. What species of seal, Hydrurga leptonyx, gets its catlike name from the spotted pattern along its back?
   
   Answer: Leopard Seal
   
   
6. What British overseas territory is partially protected from severe hurricanes due to a surrounding coral reef but remains frequently associated with disasters due to an allegedly large number of unexplained aircraft disappearances?
   
   Answer: Bermuda
   
   
7. Phonorids, marine animals that filter feed and build homes out of chitin, are also known as ______ worms. Fill in the one word blank, an allegedly lucky item that is usually made to help a bronco walk.
   
   Answer: Horseshoe Worms
   
   
8. “Morse” is an archaic term for which large marine mammal characterized by prominent tusks and whiskers?
   
   Answer: Walrus
   
   
9. The mysterious Bermuda Triangle, also known as the Devil's Triangle, is said to have swallowed many ships, planes, and helicopters into its depths. In which ocean is this regional anomaly located?
   
   Answer: Atlantic
   
   
10. Mission Park in San Diego, CA is home to a location of what animal theme park and oceanarium? It used to best known for its connections to the killer whale Keiko and the movie “Free Willy”, until outside pressure limited their use of orcas.
    
    Answer: SeaWorld
    
    
11. What “B” fish, known as a “cuda” for short, is a large saltwater fish of genus Sphyraena?
    
    Answer: Barracuda
    
    
12. Which squid gets its name not because it has a taste for blood but from the dark skin on its arms that makes it look like it’s wearing a Dracula-esque cape?
    
    Answer: Vampire
    
    
13. What tremendous three-word site off the coast of Queensland is the world’s largest coral system, composed of over 2,900 of its namesake items and 900 islands, spreading over 2,300 square kilometers? It was named a UNESCO World Heritage Site in 1981.
    
    Answer: great barrier reef
    
    
14. In "Finding Nemo," what is the circus-related name of the type of anemone-dwelling fish that Nemo and his dad Marlin are?
    
    Answer: clownfish
    
    
15. What four-letter word is often used as the common name for several kinds of bivalve molluscs? Typically, this word is only used when the mollusc is edible.
    
    Answer: Clam
    
    
16. Literally the study of whales, "Cetology" is the title of the 32nd chapter of what lengthy American novel?
    
    Answer: Moby Dick
    
    
17. The largest species of shark is named after another large sea-dweller, and the species can reach lengths as large as 60 feet. What is this species?
    
    Answer: Whale shark
    
    
18. Sometimes called "rainforests of the sea," what is the name for the type of underwater ecosystem that occupies less than 0.1% of the world's ocean area but provides a home for more than 25% of marine species?
    
    Answer: Coral reefs
    
    
19. In contrast to bony fish, Chondrichthyes, such as sharks and rays, have skeletons made of which material?
    
    Answer: Cartilage
    
    
20. The largest living species of tortoise in the world is native to what island archipelago in the Pacific Ocean? The archipelago was also the name of a 1985 Kurt Vonnegut novel, about a shipwreck there.
    
    Answer: Galapagos
    
    
21. Genus Pterophyllum, a species of colorful freshwater fish found in basins in South America is the ______fish. Fill in the one word blank, also the name of a spiritual being believed to be an agent of God.
    
    Answer: Angelfish
    
    
22. A "smack" is the collective term for a large group of what stinging, tentacled sea creatures?
    
    Answer: jellyfish
    
    
23. Diatoms, protozoans, and tiny crustaceans make up the collection of sea life on which many fish and whales feed, known as what P-word?
    
    Answer: Plankton
    
    
24. Australian crocodile hunter Steve Irwin was famously killed by what type of animal?
    
    Answer: Stingray
    
    
25. Some scientists believe that the spiral tusk on which type of Arctic whale helps it attract mates?
    
    Answer: Narwhal
    
    
26. The world-famous Tsukiji fish market features daily early-morning tuna auctions in what city?
    
    Answer: Tokyo
    
    
27. What critter with an equine-esque name can move its dorsal fin back and forth as quickly as 35 times per second in order to propel through water?
    
    Answer: Seahorse
    
    
28. Sushi is not an interchangeable term with "raw fish" but is a more general term for a Japanese way of preparing and serving vinegared rice. Speaking of raw fish. . . what is the term for the raw fish salad served in a bowl which originated in Hawaii?
    
    Answer: Poke
    
    
29. Sharing their name with a common cleaning tool, what is the more common name of the worlds most simple animals from the phylum Porifera?
    
    Answer: Sponges
    
    
30. What "A" word means a ring-shaped reef of coral that completely encloses a lagoon?
    
    Answer: Atoll
    
    
31. The Japanese yachtsman Kenichi Horie was the first person to use solar power to cross what body of water in 1996?
    
    Answer: Pacific Ocean
    
    
32. What's the better known name for the body part known scientifically as vibrissae, found on seals, walruses, and sea lions--oh, and house cats?
    
    Answer: Whiskers
    
    
33. What “A” fish, also known as longfin tuna, is of the order Perciformes and is one of the most sought after food fishes in the world?
    
    Answer: Albacore
    
    
34. Paul, a common octopus, became famous in 2010 for correctly predicting 12 of 14 matches in what quadrennial international sports event?
    
    Answer: FIFA World Cup
    
    
35. In what Texas city is Sea World located? (Hint: This city was the site of an important battle for Texas independence.)
    
    Answer: San Antonio
    
    
36. The flightless cormorant, the only known member of this bird species that has lost the ability to fly, fishes in the waters off of what isolated islands known for unusual animals?
    
    Answer: Galapagos Islands
    
    
37. In 1989, a ship hit a reef in the Prince William Sound and spilled more than 10 million gallons of crude oil over more than 1,000 miles of coastline. What was the famous, ill-fated two-word name of this ship?
    
    Answer: Exxon Valdez
    
    
38. In Herman Melville's famous "Moby-Dick," what species of whale is the "white whale?" The name comes from the semi-liquid, waxy substance found within the whale's head.
    
    Answer: Sperm whale
    
    
39. The balanamorpha are what suborder of barnacles, also the name of the nut of oak trees and their close relatives?
    
    Answer: acorn barnacles
    
    
40. The Sargasso Sea of the Atlantic Ocean, the only sea without a land boundary, is named after a genus of which type of organism that is also called macroalgae?
    
    Answer: Seaweed
    
    
41. Ask Nicki Minaj: The green species of a certain water boa is found in South America's rivers. What type of water boa would this be?
    
    Answer: Anaconda
    
    
42. The koa tree is endemic to what U.S. state? The very sturdy wood from this true is resistant to saltwater and has been used for boat building and surfboards.
    
    Answer: Hawaii
    
    
43. According to a Season 10 episode of "South Park," the animated sitcom "Family Guy" is scripted by what whiskered Florida sea cows?
    
    Answer: Manatees
    
    
44. What “A” marine animal is a predator of order Actinaria, who gets its name from the Earth flower it resembles with its brightly colored sticky exterior? It sits on the sea floor and captures unassuming prey.
    
    Answer: Anemone
    
    
45. What small, common forage fish, of the family Engraulidae, can be found in marine and fresh water? They are an acquired taste as far as food fish go, sometimes eaten out of a can, or served on a pizza.
    
    Answer: Anchovy
    
    
46. What canal connects the Red Sea with the Mediterranean Sea?
    
    Answer: Suez Canal
    
    
47. What green-skinned salad ingredient features in the name of a toxic echinoderm, capable of both sexual and asexual reproduction, that lives on the sea floor?
    
    Answer: Cucumber
    
    
48. Technically speaking, Norway's coastline is about 18,000 miles long, but only 1,600 miles if you omit what crinkly inlets?
    
    Answer: Fjords
    
    
49. What is the more common name for the Castor genus of mammals? It includes two species of a large, primarily nocturnal, semiaquatic rodent with enamel that contains iron and is more resistant to acid than the teeth of other mammals.
    
    Answer: Beavers
    
    
50. According to 18th-century satirist Jonathan Swift, "he was a bold man that first ate" what bivalve that comes in Bluepoint and Kumamoto varieties?
    
    Answer: Oyster
    
    
51. What is the name for the carnivorous mammals in the subfamily Lutrinae that have slim bodies, relatively short limbs, powerful webbed feet, and seal-like abilities to hold breath underwater? They also have soft, insulated underfur and an outer layer of long guard hairs.
    
    Answer: Otters
    
    
52. Which type of ray gets its name from the Portuguese word for “blanket,” has triangular fins, and is known for its big brain (it’s one of the only sea critters that has passed the “mirror test” for self-awareness!)?
    
    Answer: Manta
    
    
53. What is the alliterative name for the shark that has a distinctly circular bite mark? Technically it is the species Isistius brasiliensis but its more common name comes from a kitchen utensil which is also used to create distinctly-cut shapes.
    
    Answer: Cookiecutter shark
    
    
54. Certain species of red algae seaweed of the genus Pyropia are used to make what dried Japanese seaweed, which is probably most widely known for being wrapped around sushi?
    
    Answer: Nori
    
    
55. The neon blue "bioluminescent bay" off the island of Vieques is the brightest in the world. Vieques is part of what U.S. territory in the Caribbean?
    
    Answer: Puerto Rico
    
    
56. Named for the fish eggs common at nearby State Fish Hatchery, Montana is home to the shortest river in the United States, measuring just over 200 feet. What is the name of this alliterative river?
    
    Answer: Roe River
    
    
57. Often considered the smallest-known species of shark, the dwarf lanternshark is only found in a small area of what tropical body of water?
    
    Answer: Caribbean Sea
    
    
58. Makizushi is a cylindrical piece of sushi traditionally wrapped in nori, which is typically referred to by what English word?
    
    Answer: Seaweed
    
    
59. Wind, the Coriolis effect, breaking waves, cabbeling, and salinity differences are all different forces that create what continuous movement of ocean waters?
    
    Answer: Currents
    
    
60. Traditionally, the word "caviar" only refers to roe from wild sturgeon in one of two seas that border Russia. Name either one of those caviar-rich seas.
    
    Answer: Caspian Sea or Black Sea
    
    
61. Sharing its name with a type of firearm is which species of shrimp, capable of using its claws to make a noise of up to 210 decibels?
    
    Answer: Pistol shrimp
    
    
62. What eight-letter "M" island country is located entirely in the Indian Ocean, has Malé as the capital city, contains 26 atolls, and has Dhivehi as the official and most common language?
    
    Answer: Maldives
    
    
63. Although they are often described as jellyfish, these poisonous creatures named after an 18th century armed sailing ship from Spain's neighbor are in fact a "colonial organism" which is made up of specialized individual animals (of the same species). What is this creature?
    
    Answer: Portuguese man-of-war
    
    
64. During some feeding frenzies, blue whales can eat a daily total of more than 8 tons of what tiny crustaceans, whose name in Norwegian means "small fry of fish"?
    
    Answer: Krill
    
    
65. Which type of whale is also called the “toothless whale” because their mouths are specially designed to filter food out of seawater?
    
    Answer: Baleen
    
    
66. Which type of plankton is self-feeding in the sense that it gets nourishment through photosynthesis? (Hint: They’re also called microalgae and dinoflagellates and diatoms are the two main classes of them).
    
    Answer: Phytoplankton
    
    
67. Who co-invented the Aqua-Lung, the first open-circuit scuba (now known as a diving regulator) to achieve worldwide popularity, with Émile Gagnan? The two went on to use the Aqua-Lung to film underwater.
    
    Answer: Jacques Cousteau
    
    
68. What is the common name of Pterosis, a genus of marine fish characterized by colorful stripes and venomous fin spines? This common name of comprises the name of a felid.
    
    Answer: Lionfish
    
    
69. It is likely that the first of these animals was the "Stellar" variety in which the male has a pronounced mane and is a fairly aggressive carnivore. This likely led to the misnomer for the creature. What is the name of these pinnipeds long foreflippers, the ability to walk on all fours, and a big chest and belly? They range from subarctic to tropical waters in both the Northern and Southern Hemispheres.
    
    Answer: Sea lion
    
    
70. What Pacific Northwest inlet of the Pacific Ocean is technically part of the Salish Sea and is considered an estuary?
    
    Answer: Puget Sound
    
    
71. Reaching weights of up to 2,000 lbs., which species of sea turtle is the world’s largest species of turtle? The name of this species of turtle references its tough skin.
    
    Answer: Leatherback
    
    
72. Captain Ahab chased the monstrous white whale known as Moby Dick, but what whale is the only real world cetacean that is regularly white in color?
    
    Answer: Beluga
    
    
73. What was the name of the first known intentional live capture of a healthy orca? Although she was the fourth live capture overall, the previous three (Wanda, Moby Doll and Namu) had been deemed "opportunistic" captures. This famous mammal was caught near Penn Cove, Puget Sound.
    
    Answer: Shamu
    
    
74. Which group of typically colorful tropical fish species is named for their bird-like beak formed by the fused teeth of the jaws? Their feeding activity is important for the production of sand.
    
    Answer: Parrotfish
    
    
75. Technically, scuba originated as an acronym. What was the phrase this word stood for?
    
    Answer: self-contained underwater breathing apparatus
    
    
76. Hermione Granger's patronus is represented by what occasionally water-bound animal?
    
    Answer: Otter
    
    
77. Sea ______ are named after a type of flower and they do, indeed, look like plants. However, they’re actually stinging, predatory animals that enjoy immortality thanks to their ability to clone themselves.
    
    Answer: Anemones
    
    
78. What is the common name for the group of flatfish species well-known for their camouflage abilities and for the peculiar positioning of both eyes on one side of the body? Interestingly, at hatching, one eye is on either side of the body but an eye moves over to join the other before reaching adulthood.
    
    Answer: Flounder
    
    
79. The undersea arthropod’s name sounds more equestrian than epidemiological, but its blue blood is used by medical researchers to test out medicines and treatments. Its scientific name is Limulidae, but it’s commonly called what?
    
    Answer: Horseshoe Crab
    
    
80. Pollywogs appear before King Neptune and his court to become shellbacks in a weird, unofficial U.S. Navy ceremony commemorating a sailor's first official crossing of what imaginary line?
    
    Answer: Equator
    
    
81. Since they lead a more aquatic life than other salamanders, the wild-looking axolotl don't shed what external respiratory organ?
    
    Answer: Gills
    
    
82. Though their stinging tentacles aren't actually snakes, jellyfish are part of a subphylum named for what Gorgon?
    
    Answer: Medusa
    
    
83. Once called the Champa Sea by Southeast Asia and where one-third of global shipping passes through, what sea within the Western Pacific Ocean is surrounded by China, Taiwan, Borneo and the Indochinese Peninsula?
    
    Answer: South China Sea
    
    
84. The "electric organ," unsurprisingly, creates an electric field that is used for navigation, communication, defense, mating and more. It's a very multifaceted organ. In what type of animal will you find this organ? We're looking for a common four-letter word that technically is a group of four classes of animals.
    
    Answer: Fish
    
    
85. What type of squid, scientific name Illex illecebrosus, is a neritic squid found in the northern Atlantic Ocean? Their name points out their relatively miniscule dorsal regions.
    
    Answer: Shortfin Squid
    
    
86. A hydroid on the ocean floor that branches like a certain evergreen coniferous tree is called a sea ______. Fill in the three letter blank.
    
    Answer: Sea Fir
    
    
87. From the Greek for "depths of the sea," what seven-letter B-word means the community of organisms -- both flora and fauna -- that live on or near the bottom of a body of water?
    
    Answer: benthos
    
    
88. Also the nickname of a "Game of Thrones" character, what 2013 documentary exposes the consequences of keeping orcas in captivity, using SeaWorld's orca Tilikum as an example?
    
    Answer: Blackfish
    
    
89. The highly poisonous blue-ringed octopus warns people to "buzz off" by lighting up super bright rings powered partly by what G-word nucleobase that's in DNA and Monster energy drinks?
    
    Answer: Guanine
    
    
90. Sharing its name with a piece of sporting equipment is which fish, notable for the bioluminescent fishing rod-like appendage used to lure prey?
    
    Answer: Football fish
    
    
91. A cheesy 1978 parody movie set in the San Diego County city of Oceanside was titled Attack of the Killer _____, where the blank is filled in by what vegetable (or maybe fruit?)
    
    Answer: Tomatoes
    
    
92. What small, oily fish, also known as a "pilchard," probably gets its common English name from an Italian island where it was once said to be abundant?
    
    Answer: Sardine
    
    
93. In what body of water will you find the tiny island nation of Seychelles?
    
    Answer: Indian Ocean
    
    
94. The largest eyes of any animal on Earth are nearly 11 inches across, with lenses the size of oranges. That means the eyes are approximately the size of soccer balls. These eyes give "binocular-like" vision to the "colossal" variety of what sea-dweller?
    
    Answer: Squid
    
    
95. Callinectes sapidus, a food crab native to the western Atlantic Ocean, is distinguished by what color on its shell?
    
    Answer: Blue Crab
    
    
96. Contrary to its consolatory name, what species of lethargic shark is responsible for the fourth most human bites on record?
    
    Answer: Nurse Shark
    
    
97. King salmon, Quinnat salmon, spring salmon, chrome hog, and Tyee salmon are all alternate names for the official state fish of Alaska which is more often referred to by what name?
    
    Answer: Chinook salmon
    
    
98. The Mariana Islands are an arc-shaped archipelago made up of 15 volcanic mountains in the Pacific Ocean. Spain ceded the largest island in the chain to the U.S. in 1898, and it today remains a part of the United States. What is this largest island?
    
    Answer: Guam
    
    
99. What is the loudest animal on earth? Talking about the loudest noise it can generate, not its proportion of time spend making noise.
    
    Answer: Sperm Whale
    
    
100. A commonly-sought fish in Minnesota is the "Muskellunge" which is often deemed the "ugly" variety of what family of fish? This family is distinguished by its torpedo-like form and sharp teeth.
     
     Answer: Pike
     
     
101. What word refers to small organisms, including both plants and animals, that are unable to move themselves against ocean currents?
     
     Answer: Plankton
     
     
102. The word "loggerhead" is applied due to the animal's prominent, large head. What type of animal is this?
     
     Answer: Turtle
     
     
103. What unusual shark gets its name, which it shares with a common kitchen item, from the circular "plug" bites it takes out of its prey?
     
     Answer: Cookiecutter Shark
     
     
104. What family of some of the largest flying birds includes "mute" and "trumpeter" species and weirdly has "teeth" which are actually jagged parts of their bill used for catching and eating fish?
     
     Answer: Swans
     
     
105. What “T” eight-legged segmented micro-animals can actually survive in the vacuum of space?
     
     Answer: Tardigrade
     
     
106. The Pokémon Seel evolves into another seafaring creature that also is a "misspelling" of a sea critter. Name the evolved Pokémon or the correct spelling.
     
     Answer: Dugong
     
     
107. Acanthaster planci, a large, venomous sea star, has what common name, which it takes from an item associated with the Biblical crucifixion of Jesus?
     
     Answer: Crown-of-thorns Starfish
     
     
108. What is the name of the 2020 Netflix documentary film which documents a year that filmmaker Craig Foster spent freediving and learning about and from a wild common octopus?
     
     Answer: My Octopus Teacher
     
     
109. At only one-half of one millimeter long, tardigrades are considered a microanimal found in marine environments that also happen to be one of the most resilient animals known. What is the more common two-word name for these animals based on their resemblance to a certain land-bound animal?
     
     Answer: Water bear (or moss piglet)
     
     
110. All seahorses belong to what genus, a name shared with a seahorse-shaped part of the human brain important to memory?
     
     Answer: Hippocampus
     
     
111. What weird evolutionary thing is shared by certain species of all these creatures? Gnats, jellyfish, squids. In North America this weird evolutionary thing is most frequently seen in the Photinus pyralis species.
     
     Answer: Bioluminescence
     
     
112. Macrophyte is a fancy word for what type of water creature?
     
     Answer: Plants
     
     
113. Sepia is the name given to the ink secreted by which marine creature? This marine creature can change its skin color to communicate and for camouflage. Though its common name includes “fish”, this creature is, in fact, a mollusc.
     
     Answer: Cuttlefish
     
     
114. You probably couldn't eat a whole whale, but you might be able to eat what fictional cetacean introduced in the 1970s by the Carvel ice cream company?
     
     Answer: Fudgie the Whale
     
     
115. Rotational symmetry is the property in which a shape looks the same after a partial rotation or turn. When applied to biology such as in sea anemones, what other "R" term is used to describe this characteristic?
     
     Answer: Radial symmetry
     
     
116. Which marine-dwelling bacteria is named for its blue hue and can produce toxins that are dangerous for humans and animals (who can easily stumble upon it in a lake)?
     
     Answer: Cyanobacteria
     
     
117. What shrimp species is sometimes called the "thumb-splitter" because of the incredibly powerful strike of its club-like claws?
     
     Answer: Mantis Shrimp
     
     
118. What is the "catch-all" term for ocean life that includes photosynthetic, single-celled eukaryotes like diatoms but also multicellular organisms like nori seaweed and kelp?
     
     Answer: Algae
     
     
119. What slender-bodied shark is harmless to humans and named for the striking pattern of black saddle-like markings and large spots over its back?
     
     Answer: Leopard shark
     
     
120. Usually, you watch them break against a sandy beach but the largest of which ocean-wind phenomenon actually occurs below the water’s surface? (And no, you can’t surf them).
     
     Answer: Waves
     
     
121. Starfish, sea urchins, and sand dollars are a few examples of which phylum of sea critter that live on the bed of the ocean and is easy to spot by their (typically 5-point) symmetry? (Hint: The name is Greek for “hedgehog skin”)
     
     Answer: echinoderms
     
     
122. The Inter-Ocean was a popular newspaper from from the end of the Civil War until 1914. This somewhat unusual name for the paper made more sense when one realized what large American city was home to the paper's headquarters. What was this city?
     
     Answer: Chicago
     
     
123. What type of fish, “r”ay-finned members of the family Echeneidae, use suction to hold onto larger marine animals, and are sometimes referred to as suckerfish? Their name comes from the Latin for “delay”.
     
     Answer: Remora
     
     
124. Also known as mola, which astronomical body features in the name of the genus that includes the heaviest species of bony fish?
     
     Answer: Sun
     
     
125. The ______fish, the Rhinobatidae family of rays, have an elongated body and flattened head that make them look like what stringed musical instrument?
     
     Answer: Guitar
     
     
126. What internationally award-winning preschool program, shown in the U.S. on Disney Junior, includes a polar bear named Captain Barnacles, and teaches children about ocean life?
     
     Answer: Octonauts
     
     
127. What biome is also known as the boreal forest or snow forest? The biome is identifiable through its coniferous forests consisting mostly of pines, spruces, and larches. Although sparsely populated compared to other biomes, it is the world's largest apart from the oceans. In North America it covers most of inland Canada and Alaska.
     
     Answer: Taiga
     
     
128. Which species of baleen whale are named for the distinctive triangular skull? This species of whale is thought to be able to live to over 200 years old.
     
     Answer: Bowhead whale
     
     
129. Sharks aren’t covered in scales—those sharp things are actually tiny teeth. What’s the proper name for them? (Hint: It rhymes with tentacles)
     
     Answer: Denticles
     
     
130. Norwegian explorer Thor Heyerdahl led a famous 1947 expedition across the Pacific Ocean from South America to the Polynesian Islands aboard what raft with a hyphenated name?
     
     Answer: Kon-Tiki
     
     
131. There's a "spooky" sea creature found only in extreme deep sea conditions that, despite its name, is more closely related to octopi than squids. It features rows of fleshy spines in its inner black "cloak." What is the name of this creature?
     
     Answer: Vampire squid
     
     
132. Neovison and Mustela are the two genuses of what territorial mammal lives near water and is rarely found more than 200 meters from a riverbank, lake, or marsh? The animal's fur is considered especially durable and valuable with its short, thick, soft hairs.
     
     Answer: Minks
     
     
133. This question stinks! Unlike fish, manatees lack a "swim bladder," an organ that helps regulate buoyancy. Instead, the prevailing thought is that manataees use what bodily function to control their buoyancy?
     
     Answer: Farting
     
     
134. An experience as a young seaman being captured in the South Pacific by cannibals and imprisoned for mutiny inspired material for what American author for his future maritime fiction?
     
     Answer: Herman Melville
     
     
135. Which marine mammals, also known as sea cows, live in warm coastal waters and primarily feed on underwater grasses? Unlike manatees, these mammals have a fluked tail.
     
     Answer: Dugong
     
     
136. Officially classified as an anxiety disorder in the “Diagnostic and Statistical Manual of Mental Disorders”, the fear of deep bodies of water is known as what 14-letter “T” word?
     
     Answer: Thalassophobia
     
     
137. Trepanging is the harvesting of what elongated, leathery Pacific creature you probably don't want in your gyro?
     
     Answer: Sea cucumber
     
     
138. Getting stung by one most certainly does not rock. Closely related to scorpionfish, what group of fish from the genus Synanceia is considered the most venomous, with untreated stings sometimes leading to death?
     
     Answer: Stonefish
     
     
139. A fish's dorsal fin is located along its spine; what corresponding adjective starting with C describes a fish's tail fin?
     
     Answer: caudal
     
     
140. What “A” name is given to a number of different marine snails in the family Haliotidae?
     
     Answer: Abalone
     
     
141. What S-word is the technical name for the buoyant brown seaweed that floats on the ocean surface—sometimes for miles?
     
     Answer: Sargassum
     
     
142. The largest aquarium in the world is located in what country? Its enclosures contain almost 13 million gallons of water.
     
     Answer: China
     
     
143. Copepods are small marine crustaceans found in nearly every saltwater and freshwater environment. Somewhat uniquely, these organisms have three of what part of the eye?
     
     Answer: Lens
     
     
144. The Sea Around Us, a poetic imagining of sea life, won a National Book Award for what writer and naturalist, most famous for writing Silent Spring?
     
     Answer: Rachel Carson
     
     
145. What “A” type of penguin is one of the most prominent penguin species on the Antarctic continent? It comes from a French word meaning “noble in nature.”
     
     Answer: Adelie
     
     
146. Deriving from the Latin words for "fin" and "foot," what is the name of the order of carnivorous, flippered mammals that includes seals and walruses?
     
     Answer: Pinniped
     
     
147. What is the collective name for any eukaryotic organism that is not a plant, animal, or fungus? These are found both on land and in marine environments.
     
     Answer: Protist
     
     
148. Fill in the blank. The _____-toothed beaked whale is one of the rarest species of whales. Hint: Think of a deck of cards.
     
     Answer: Spade
     
     
149. Although the study of animal sex is still being actively researched, there's currently only one known demonstration of nasal sex in the animal kingdom, found in what type of Amazonian animal?
     
     Answer: Dolphin
     
     
150. A 60-foot-long marine invertebrate made up of thousands of individual clones that together form a long, free-floating cylinder wide enough for a person to enter has what name that comes from the Greek words for fire and body?
     
     Answer: Giant Pyrosome
     
     
151. You might assume that the deepest parts of the ocean are also the coldest, but they can actually get pretty warm thanks to which geological phenomenon where magma meets water on the ocean floor?
     
     Answer: Hydrothermal vents
     
     
152. What 2016 romantic drama film stars Michael Fassbender as Tom Sherbourne, a World War I hero who works as a lighthouse keeper on Janus Rock off the coast of Australia?
     
     Answer: The Light Between Oceans
     
     
153. Used for more than 50 years in cancer treatment, what drug, also known as "Ara-C" and "Cytosar-U," is the first ever isolated from a sea sponge?
     
     Answer: cytarabine
     
     
154. The clown frogfish that lives in the warm waters of the Pacific Ocean is also known by what other name related to the small dermal spinules or protuberances that cover the critter's skin?
     
     Answer: Warty frogfish
     
     

What makes ocean trivia so engaging?

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