Synapsida

Toxodon Around three million years ago, as the Pliocene began to draw to a close, North and South America collided, the island chain tha...

The echidna is a pretty strange mammal. Most notably, it is the only mammal other than the platypus that lays eggs. I've discussed in ...

Anoa (probably lowland species) One of the themes that we see played out from time to time in evolution is that of insular dwarfism . He...

The fossils of mammals, and, indeed, other vertebrates, tend to consist largely of bones. That's not an absolute rule, of course, and ...

Humans are almost unique among mammals in experiencing menopause a long time before their actual death. That is, they continue living for ...

Bat hawk There are not many animals that eat bats. Or, at least, that's often been the received wisdom. Bats only come out at night,...

African buffalo Outside of North America, the term "buffalo" refers not to the bison , but to two (or more) species of bovine ...