Living in groups

Ability to walk on two legs

Use of simple stone tools

Development of complex language and culture

The extinction of one species at a time

When dinosaurs went extinct only

When a few animals die in one region

The sudden disappearance of most species within a short time

Is one of the most complete Australopithecus skeletons ever found

Is the oldest Homo sapiens fossil in the world

Proved dinosaurs evolved into humans

Shows that humans first lived in Asia

They allow new groups of organisms to evolve and fill empty niches

They only affect large animals, not small ones

They destroy all forms of life permanently

They stop evolution from continuing