Discover interesting information about sharks
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Sharks have existed on Earth for over 400 million years. There are 440 different shark species.
In a lifetime, a shark can have up to 30,000 teeth. They are constantly being replaced and displaced in the mouth. Sharks are color-blind animals. Sharks have no bones in the body. They are made up of elastic tissues called cartilage.
Sharks have a special ability called the electric senses, which is the ability to recognize electrical signals. This gives them an advantage when looking for prey. Sharks are sensitive to changes in water pressure. They can notice the slightest changes through specialized cells with small hairs in them. The shark’s skin is very hard and thick because it is made of a protein called collagen. In particular, whale shark skin can be up to 10 cm thick!
And now, do you wan to draw a cute Shark?