Jellyfish!
Jellyfish are 95% of this substance.
What is water?
These invertebrates live in shallow and tidal waters, known in media to stick onto the sides of ships.
What are barnacles?
The estimated number of fish species
What is 20,000+?
The sea mammals with the biggest hearts on the planet.
What are blue whales?
This object kills more than sharks annually.
What are coconuts? (Will also take vending machines).
Jellyfish use this technique to catch and eat their prey.
What is paralysis?
The part of the crab helps them "walk," or swim, across the ocean floor.
What are their back legs?
The gas that fish breathe.
What is oxygen? (Not air)
Killer whales are part of this family.
What is the dolphin family?
Sharks can lose this amount of teeth in a lifetime.
What is 30,000+?
This part of jellyfish is found in the center of its body and can be used as a water jet.
What is the jellyfish's mouth?
What are box jellyfish?
These fish live on the sea floor and are equipped with large flat teeth.
What are bottom dwellers?
These mammals can remain underwater for 8-20 minutes.
What are sea lions?
Sharks use this to hunt hidden prey.
What is Lorenzi (or eletrical stimuli)?
Jellyfish help monitor something about our ocean's?
What is climate change and the effects of overfishing?
The level of mercury in shellfish that makes it harmful to consume.
Trick question. What is none? (This is only for normal shellfish in regular polluted oceans).
The reason why fish smell "fishy."
What is deterioration?
Called the "canaries of the sea" because of their varied and frequent vocalizations.
What are beluga whales?
Unlike other sea creatures, sharks don't have these important muscles.
What are vocal cords?
Deep sea jellyfish use this to attract prey.
What is bioluminescence?
The tiny crab living inside an oyster.
What is a "pea crab?" (Will also accept parasite).
The oldest fish in the world.
Known as the sea cow and are classified as an endangered species
What are dugongs?
The newly discovered shark species (as of 2025).
What is Guitar Shark?