Hominids (ape-men and early men)
They were unable to use tools
They created complex stone tools such as bows, arrows, and axes
They created primitive metal tools
They were able to use natural objects, stones and bones, as weapons
The Australopithecus skull looks nothing like the gorilla skull
The Australopithecus skull looks similar to the gorilla skull
The Australopithecus skull more closely resembles a human skull than a gorilla skull
Homo sapien, 300,000 Y.A.
Australopithecus, 5-8 milllion Y.A.
Homo habilis, 2 million Y.A.
Homo erectus, 1.7 million- 300,000 Y.A.
Protruding jaws with large molars
A long low skull
Brain size between 1300-1500 milliliters
Building homes covered in animal skin
Learning to use fire
Modern humans have more hair than their ancestors
Modern humans have large brow ridges like their ancestors
Ancient ancestors have a thinner and more rounded skulls than modern humans
Our ancient ancestors had higher foreheads than modern humans and a slightly projecting chins
Our ancient ancestors had an average brain size of about 1350 millilitres
The human brain evolves by growing larger to adapt to changes in technology
The human brain evolves by shrinking because due to harmful chemicals in the environment
Humans no longer physically evolve to exploit new environments