Sharks are not mammals. Rather, they are a species of fish. Sharks have a skeleton that is entirely composed of cartilage and is equipped with leathery, tough and scale less skin. These skeletons differ greatly from those of the bony fish
Leaves get their colors through pigments. Leaves turn green because of chlorophyll but when they turn orange red and yellow it’s the chlorophyll breaking down and mixing with pigments (like carotenoids)
