1. Humans appeared late in Earth’s history.

2. Humans share a common ancestor with other primates.
Primates are mammals with flexible hands and feet, forward-looking eyes and enlarged brains.

3. Primates evolved into prosimians and anthropoids.
Prosimians are the oldest living primates.
They are mostly small and nocturnal.
Lemurs

4. Anthropoids are humanlike primates.
New World monkeys, Old World monkeys, and hominoids.
Hominoids are divided into hominids, great apes, and lesser apes.
Hominids - modern man and extinct ancestors of man

5. Bipedal means walking on two legs.
Advantages:
foraging
carrying infants and food
using tools

6. There are many fossils of extinct hominids.
Most hominids are either the genus Australopithecus or Homo.
The Homo genus first evolved 2.4 million years ago.

7. Homo sapiens (modern humans) fossils date to 200,000 years ago.
Human evolution is influenced by a tool-based culture.
There is a trend toward increased brain size in hominids.
Australopithecus
afarensis
Homo habilis
Homo
neanderthalensis
Homo sapiens