For chimps , estimates ranged from 15 to 25 years .

就黑猩猩来说，每代间隔时间在15至25年之间。

On the whole , female dolphins are more sociable than female chimps .

总的来说，雌性海豚比雌性黑猩猩更善于交际。

Still , he added , policing chimps may earn respect from others .

他还补充道，警务黑猩猩可以获得别人的尊敬。

Moreover , it seems to have made the jump from chimps to people only once .

而且，从黑猩猩到人类的这次跳跃似乎只出现过一次。

A team of anthropologists spent nearly 600 hours observing the social interactions of chimps at a swiss zoo .

一个人类学家小组花了近600小时在瑞士动物园观察黑猩猩的社会行为。