There are many very interesting facts about fish but here are 25 facts about fish that I found interesting.
Here are some facts about sharks
The Cookiecutter shark’s name stemmed from its unusual feeding method. The sharks attaches its mouth onto its victim and carves out a hunk of flesh, (After the shark bites it looks like you have been stabbed by a cookie cutter),The first tiger shark pup to hatch inside its mother’s womb devours its unborn siblings until only two pups remain, one on each side of the womb When tiger sharks are born they are already killers Hammerhead sharks are born with soft heads so they won’t jam their mothers’ birth canals. Sharks do not have a single bone in their bodies. Their skeletons are made of cartilage. (this means that they are vertebrate species )The average shark has 40-45 teeth and can have up to seven rows of replacement teeth,The largest fish is the great whale shark which can reach fifty feet in length Sharks kill 12 people per year while people kill 11,417 sharks per hour. (we need to stop killing as much sharks because eventually they could become extinct and they play a huge role in our ecosystem) There's a shark in Greenland that eats polar bears and can live up to 200 years.
More Fish Facts
Fish have been on the Earth for over 500 million years (Fish are a lot older than 40% of all fish species inhabit fresh water (there is more fish in saltwater than there are in fresh water) Some species of fish can fly (glide) others can skip along the surface and others can even climb rock. Fish make up about half of all known vertebrate species (the others are in a wide variety of species) A fish is an animal which lives and breathes in water Goldfish can see infrared radiation that is invisible to us. (fish can see a lot more than us)
Fish
The smallest fish is the Philippine goby that is less than 1/3 of an inch when fully grown (this fish when first born is insanely small since at full length it is ⅓ of an inch.) Some fish make sounds by grating their teeth and others like some catfish make sounds from their air filled swim bladder.Fish were well established long before dinosaurs roamed the earth. Fish have been on the earth for more than 450 million years. ( they have clearly been on the earth longer than humans)
The strangest facts so far
Herrings communicate through farts. (Herrings communicate in a very different way than any other fish)An estimated one third of male fish in British waters are changing sex due to pollution in human sewage (If we stopped pollution we could probably prevent this)Starfish are not fish. Neither are jellyfish.