21 / 56
21
...and population estimates
Population estimates
Thousands
IUCN Red List category
1980
1985
1990
1995
2000
2005
2010
1980
1985
1990
1995
2000
2005
2010
1980
1985
1990
1995
2000
2005
2010
1980
1985
1990
1995
2000
2005
2010
1980
1985
1990
1995
2000
2005
2010
1980
1985
1990
1995
2000
2005
2010
Vulnerable
Endangered
Critically Endangered
Cross River gorilla
Mountain gorilla
Eastern Lowland
gorilla
Bonobo
Western
Lowland
gorilla
Chimpanzee
0.30
0.88
2
10
20
150
294
431
Source: IUCN online database, accessed on February 2013
15