1. M. EARLY HOMINID EVOLUTION

2. PHYLOGENY OF PROSIMIANS & ANTHROPOIDS
LEMURS, LORISES, POTTOS
TARSIERS
NEW WORLD MONKEYS
OLD WORLD MONKEYS
GIBBONS
ORANGUTANS
GORILLAS
CHIMPANZEES
BONOBOS
HUMANS
MILLIONS OF YEARS AGO

3. The bonobo looks a lot like a chimpanzee, but not quite……

4. Sometimes, bonobos look rather human………

5. potto
loris
tarsier

6. Old World monkey
New World monkey
Gibbon

8. Proconsul heseloni Distribution of species Eastern Africa
Date of specimen About 18 mya
Cranial capacity Smaller than chimpanzee,
about 320cc

10. CHANGES in PRIMATES WHERE? East Africa WHEN? 6 my BP
WHY? Habitat change

11. CONDITIONS in AFRICA -warm, wet -land is covered in forest
-much of Africa then was like Congo is now

13. PRIMATES PRESENT THEN -monkeys living in trees
-apes living in trees or on the ground under the trees
-lots of food, lots of hiding places, BUT lots of competition

15. CHANGING CONDITIONS -6 my BP, East Africa became drier
-forests began to shrink
-food ran short and some primates had to leave the forest or starve

19. OPEN LAND PRIMATES eg. modern baboons -live in groups
-search for food by day
-return to trees for safety at night