Questions related to mammals.
6
votes
2answers
82 views
Do omnivore mammals vary food preferences based on dietary needs?
I'm wandering if mammals that can eat many different kinds of food (omnivores) vary their preference for food not only based on the availability, but also based on dietary needs?
I'm looking at this ...
6
votes
1answer
473 views
Why can't humans drink sea water?
Why can't humans drink sea water?
It would seem to be a huge evolutionary advantage for an animal to be able to drink sea water rather than have to rely on fresh water, and it's provably not ...
3
votes
2answers
53 views
Do dolphins really sleep?
I have always wondered, if dolphins sleep with one eye opened, do they really sleep at all?
According to this article dolphins indeed shut down their brains.
I already googled it. No help from ...
