A mandarin fish swimming in the sea.

Fish Trivia Fun Facts

We love to eat fish. We like to keep them. And we enjoy seeing them swim about in rivers, ponds, and seas.

But do we really know much about fish? Discover more exciting facts about fish in our fun facts.


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Trivia Fun Facts
Did you know people who know lots of fun facts are happier, smater and great at parties
Fun Fact

Both the male and female plain fin midshipman produce fish vocalization that creates grunting and growling noises. But the male makes a humming sound that can last for hours to attract a female. As fish have no vocal cords, these sounds are produced by its swim bladder's muscles.

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Fun Fact

The lateral line consists of several sense organs that help fish detect changes in their surroundings (pressure changes, movement). This system helps fish with spatial orientation and allows them to stay in their school formation.

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Fun Fact

The female can grow up to 600 pounds, making the halibut the biggest flatfish of the flounder family. Being flatfish, they swim with their lateral side parallel to the ocean floor, where they stay camouflaged as they wait for prey.

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Fun Fact

Anableps actually only have two eyes that are each separated horizontally by a tissue into two lobes. When they go near the water surface, the upper half of its eyes are exposed, allowing it to see above the water. The lobes underneath, however, have their own pupils, allowing them to see below at the same time.

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Fun Fact

Though "school" is the general term for groups of fish, some species have more interesting names. For goldfish, a group of them is called a "troubling.

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Fun Fact

Native Americans introduced the use of menhaden as fertilizer to early settlers. Centuries later, the menhaden is not only important for agriculture, but it is also a key ingredient in other industries.

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Fun Fact

Similar to a tree trunk's rings, ring marks on scales and ear bones give scientists ideas on how old a fish is. One year is equivalent to each pair of rings.

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Fun Fact

Nearly 8 meters in length, the basking shark is the second biggest fish. Despite its intimidating features, such as a huge open mouth when feeding, it is quite harmless to people since plankton is its food.

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Fun Fact

Aside from the great white shark, the four other warm-blooded sharks include the salmon shark, longfin mako, porbeagle, and shortfin mako. These sharks can raise their body heat, allowing them to hunt better in cold waters.

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Fun Fact

Based on the name, some believe Dory is a John Dory (also known as the St. Peter's fish). But that is incorrect. Dory of the animated movies is a blue tang.

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