🐟 Fish & Sea Life Trivia Questions

How many hearts does an octopus have?

• 1
• 2
• 3
• 4

Which is the largest species of shark, feeding mostly on plankton?

• Great white shark
• Whale shark
• Tiger shark
• Hammerhead shark

Which sea creature has eight arms and can change color to camouflage itself?

• Squid
• Octopus
• Cuttlefish
• Nautilus

Which fish is known for its ability to inflate itself when threatened?

• Pufferfish
• Lionfish
• Anglerfish
• Boxfish

Which large predatory fish is the subject of the film Jaws?

• Tiger shark
• Great white shark
• Bull shark
• Hammerhead shark

Which sea creature typically has five arms and can regenerate lost limbs?

• Starfish
• Jellyfish
• Sea urchin
• Sea cucumber

Which venomous sea creature has stinging tentacles and is composed of roughly 95% water?

• Jellyfish
• Sea anemone
• Coral
• Sea slug

Which crustacean sheds its hard shell as it grows, a process called molting?

• Crab
• Shrimp
• Barnacle
• All crustaceans do

Which fish species is famous for swimming upstream to spawn, often dying afterward?

• Trout
• Salmon
• Bass
• Catfish

Which large fish, prized in sushi and known for its speed, is sometimes called the 'king of the sea'?

• Bluefin tuna
• Swordfish
• Mahi-mahi
• Marlin

Which sea creature has a hard exoskeleton and pincers, and is commonly boiled and eaten with butter?

• Crab
• Lobster
• Crayfish
• Shrimp

Which small crustacean forms enormous swarms in Antarctic waters and is a key part of the ocean food chain?

• Copepod
• Krill
• Amphipod
• Plankton

Which sea creature, related to squid and octopus, has a spiral shell and is called a 'living fossil'?

• Nautilus
• Cuttlefish
• Argonaut
• Conch

Which large, gentle sea mammal is nicknamed a 'sea cow'?

• Seal
• Manatee
• Walrus
• Sea lion

Which fish can generate a powerful electric shock to stun prey or predators?

• Electric eel
• Stingray
• Lamprey
• Moray eel

Which flatfish has both of its eyes on one side of its body?

• Flounder
• Cod
• Halibut and flounder both do
• Herring

Which sea creature, a mollusk, produces pearls?

• Oyster
• Clam
• Mussel
• Scallop

Which shark species has a distinctive, flattened hammer-shaped head?

• Hammerhead shark
• Thresher shark
• Nurse shark
• Goblin shark

Which sea turtle species is the largest, sometimes weighing over 1,000 pounds?

• Green sea turtle
• Loggerhead turtle
• Leatherback turtle
• Hawksbill turtle

Which small fish is famous for males carrying and giving birth to the babies?

• Seahorse
• Clownfish
• Guppy
• Betta fish