In this article, we collect 29 interesting and fun facts about fish. Check all the facts about fish and share these facts with your friends.
29 Fish Facts
Whale sharks are the largest fish in the world and grow to be as much as 50 feet long.
The smallest fish in the world in the Phillippine goby at a mere 1/3 inch long.
Scientists believe that fish have been on earth for 450,000 to 500,00 years.
Today there are as many as 25,000 different species of fish.
There are more fish on earth than there are mammals.
Fish are cold-blooded and humans are warm-blooded.
The most poisonous fish in the world is the stonefish.
Fish can see, taste, touch, smell, and some can hear.
Some fish can breathe out of water.
On of the most interesting fish facts is that some fish can breathe oxygen.
The spotted climbing perch breathes out of the water and can crawl overland on its fins to a new source of water.
A starfish doesn’t have a brain.
Here are some amazing fish facts: All fish fall into two categories: with jaws or jawless. Fish with jaws are either cartilaginous, meaning they have a flexible structure made up of cartilage, or bony, meaning they have a bone structure like humans. Sharks and rays are examples of cartilaginous fish and boned fish are the ones we commonly know like perch, trout, bass, and tuna. Jawless fish are lampreys and hagfish.
All fish are vertebrates, meaning they have a backbone.
Starfish have eyes on their legs, so they have a total of 8 eyes.
Fish have a special sense organ called the lateral line, that helps them sense a predator or object in the water before they see it.
Fish have an air bladder which is what allows them to float. Sharks and a few other fish don’t have air bladders, so they must either swim or sit on the bottom of the ocean.
Knowing fish facts can be beneficial to scientists and fishermen.
Mammals, birds and fish can all suffer because they can feel pain and have stress.
Every single fish is cold-blooded.
An octopus has three different hearts.
Scientists who study fish are called ichthyologists.
A fish’s age can be figured out from growth rings in its ear.
Every year between 70 and 100 metric tons of fish is caught worldwide.
Two fish facts: human beings eat 70% of all fish that is caught and animals eat the other 30%.
Over 20 million fish are kept in aquariums in the United States.
It is believed that there are in the range of 15,000 fish that have not yet been identified.
Freshwater fish make up 40% of all fish in the world.
A shark is the only fish capable of blinking both eyes.
