Synapsida

Generally speaking, a newborn mammal is equally likely to be male or female. The sex ratio in the resulting population may not always be a ...

What exactly does it mean to say that a species is "rare"? The general idea, of course, is that it must have a lower total populat...

Potamotherium It's the last post of the year for 2023, and that means it's time once again to take a brief look at discoveries from ...

Leptomeryx The Grande Coupure was, strictly defined, an event unique to Europe, caused by the drying up of the water channels separating it ...

Over the course of this year, I have looked at all the species of the raccoon and skunk families, two groups of smallish carnivorous mamma...

Xenorophus Other than their obvious physical adaptations, one of the most familiar features of dolphins and whales is their ability to use u...

One of the distinguishing features of mammals is that they invest a lot of time and effort in caring for their young. Of course, birds do th...