I think my teacher used the facts that I said while in class to give an example, cause I said;
"They're also part blind, which is why shark 'attacks' happen, because when people are swimming in the ocean, the sharks only see the form of a sea turtle or whatever they eat, so once they bite the human and taste the blood, that's when they notice that it's a human since the blood tastes different, so they back off from them." —A paragraph about sharks.