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skull – n. the part of the head that is made of bone and protects the brain
fossil – n. part of an animal or plant from thousands of years ago, preserved in rock
extinct – adj. no longer living or existing
tempo – n. the speed at which something happens
mode – n. a way of doing something
evolution – n. the way in which living things gradually change and develop over millions of years
species – n. a set of plants or animals in which the members have similar characteristics to each other
anthropologist – n. a person who studies human development and society or different societies
pattern – n. a particular way something is done, is organized or happens
diverse – adj. including many different kinds
