How many different mammals are there?
Mammals come in all shapes and sizes. Whales are among the largest mammals and mice are some of the smallest. They look very different depending on where they live because animals are able to adapt to their environment, which means they change depending on where they live. Mammals that live in the ocean have flippers for swimming while mammals who live in trees have long claws for climbing. There are over 5,000 species of mammals in the world, and each species is different. You may live out your life without ever seeing all the different mammals, but now you have some idea of how many other creatures share our world.