Sentences with phrase «female gibbon»

Falk suspects the size discrepancy can be linked to the philandering tendencies of our primate ancestors.Falk found that like humans, male rhesus monkeys had larger brains than females, while male and female gibbon apes were equally endowed.

The last surviving Hainan gibbon population contains only three social groups, in which male and female gibbons still sing duets with each other at dawn.