Synapsida

Wild Brazilian guinea pig ( Cavia aperea ) Domestic guinea pigs ( Cavia porcellus ) are widely found as pets in the western world, and ...

Mammals are found on every major land mass on Earth, except for Antarctica. The same is, however, much less true for 'minor' land ...

Mammals that eat a lot of grass, or other relatively low-quality vegetation, have to process their food thoroughly to extract the maximum ...

Leopard seal As one might expect, seals, for the most part eat fish and squid, although the precise details do vary quite a bit between ...

Gomphotherium angustidens At the dawn of the Miocene, Europe was still relatively isolated from much of the rest of the world. The only...

Microtus californicus californicus I've often mentioned in past posts the difficulty of defining what a "species" is. This...

At the highest level, all mammals alive today can be placed into one of three broad taxonomic groups. Around 94% of the known species are ...