Timestone 4
4.4 mya

Timestone 5
3.8 - 2.9 mya
Timestone 6
3 - 2.5 mya
Timestone 7
2.5 mya
Timestone 8
2.3 -1.3 mya
Timestone 9
2.5 mya
Timestone 10
2.4 -1.6 mya
Timestone 11
1.8 -1.5 mya
Timestone 12
800,000 - 250,000 ya
Timestone 13
200,000 - 29,000 ya
Timestone 14
120,000 ya
Timestone 15
40,000 - 10,000 ya


Hominids
We are the last ones standing.

The hominid evolution story
We are members of the species Homo sapiens, which means "wise man," and are the only living members of the family Hominidae. Mapping our family tree has not been easy. All of our hominid ancestors are extinct and the fossil evidence is patchy, although it has become more complete over the last 50 years. The hominid evolution story begins more than 4 million years ago.


Gone, but not forgotten.
Although our ancestors are gone, fossil remains reveal many clues about them. The earliest hominids were more like apes than humans. Compared to today's humans they had small brains, large teeth, and heavy jaws. The greatest difference between us and them is the size and shape of our brains.



New discoveries lead to better understanding

What is wrong with this line-up?
In the past many people believed that human evolution was a single-file parade, as shown here, with one type of hominid following another in time. We now know that the hominid family was more diverse and our evolution was more complex.

We were not the only ones
Based on the fossil record, the human evolution story looks more like a race track with several hominid species (maybe as many as five) living on this planet at the same time. Modern humans are not the peak of a long climb to perfection. We are simply the only hominids left standing.


Figures from a 1973 film
These hominid figures had a role in the Playboy Enterprises film The Naked Ape. They represented a museum exhibit on human evolution. The figures were made by a team of artists, sculptors, and anthropologists directed by taxidermist Wayne Daugherty. They were donated to the Museum of Man in 1975 and have been on display in the Museum since then.

National Science Foundation
© 2001 San Diego Museum of Man
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San Diego Museum Of Man