Museums are probably the only places you can see extinct animals and often the only places you can see some endangered animals.
Although we prefer animals to be left in the wild today, scientists can use the information they gain from museum collections to understand more about the animals still in the wild.
Learn more about extinction and endangered animals
Quiz: how well do you know about the life processes?
All living animals eat, drink, respire, excrete, move, grow and reproduce. Try Mrs Nerg's quiz designed to test your knowledge of the seven life processes.