[jrestrepo]

That logic does not fly. Boar, elephants, rhinos, etc. have very little hair, but yaks, gnus, bison, etc. have a lot of hair. All of these move during the day...during the hat of the day.

This is the logic of evolution knows the outcome.

[megatherium]

Boar, elephants, rhinos, etc. have very little hair, but yaks, gnus, bison, etc. have a lot of hair.

Yaks and bison are cold-climate animals. Elephants and rhinos are warm-weather animals. Some animals rely on subcutaneous layers of fat for warmth.