Scientists estimate chimps’ alcohol consumption for the first time, and find they seem to prefer boozier fruit.

A survey of the alcohol content of fruits eaten regularly by African chimps shows that their diet could deliver 14 grams of ethanol daily. Given their body size, that's nearly two cocktails' worth.

Surprisingly, the chimpanzees can easily consume the “equivalent of more than two standard alcoholic drinks each day.” ...

In the wild, chimpanzees consume alcohol daily just by eating their usual fruit, yet there's no sign that the animals get drunk.

The chimps eat fermented fruit throughout that day that has alcohol in them, giving credence to the "drunken monkey" hypothesis.