Synapsida

Panamanian night monkeys ( Aotus lemurinus ) Probably the most common reproductive strategy in mammals is that of polygyny. That is, any...

Transcaspian urials (Note that the rams of this species/subspecies have particularly argali-like horns) To most people, especially in ...

Cave lions (original artist unknown, c. 33,000 BC) The iconic Ice Age carnivore is, of course, the sabretooth cat. However, as I mentio...

Attack of the Killer Walrus (Or Not) The two principal families of fully aquatic carnivoran are the seals and the sea lions. To the casua...

Eohippus Horses are surely among the most familiar large herbivorous mammals. Yet, compared with the deer and cattle families, the horse...

Northern white rhino at San Diego Zoo (taken in 2007 - I don't know if he's still alive) The white rhino ( Ceratotherium simum...

Over the last year, I completed a survey of the weasel family , the largest, and most diverse, family of carnivoran mammals. When it come...