Study shows that some whale species go through menopause

[Catherine]

I used to go outside in the winter and shovel snow wearing only a T-shirt, cotton pants and bedroom slippers. It felt so good. I suspect I warmed up the neighbourhood and defeated the wind chill. 

Whales probably get something else equally annoying.

Living past our fertile years implies that there is something more that we contribute to our species beyond just having babies.
Older adults pass on knowledge to the younger ones. That also implies that a species has a body of knowledge to pass on.

I really do want to know what other species do this. Maybe we have been underestimating a number of species. We won't know until we really look at them.