Barely sober beings

Jungle shrews take a tipple, but eschew (ha ha) intoxication (It’s Always Happy Hour for Several Species in Malaysian Rain Forest):

The findings...suggest there must be benefits to having chronic low levels of alcohol in the bloodstream — otherwise the behavior would not have evolved.

Those benefits may be psychological...perhaps enabling the animals to cope with stress of some sort.

According to popular TV, a minority of macaques just like to get smashed.