A restoration of the skull of Thylacoleo. From The Ancient Life History of the Earth. *[I am not sure if Owen made this connection or tried to square it with his own thoughts on evolutionary theory. I ...

Evolution has resulted in the development of both herbivores and carnivores – but how? What type of food did extinct vertebrates eat? And how can we gain insight into the diets of these creatures? In ...

I, personally, could write about squirrels every week for a year. These are one of those common animals that are so much more than meets the eye. In response to my last squirrel column, I was asked ...

Aug. 6 (UPI) --Plant-eaters, not predators, are at a greater risk of extinction, according to a new survey of more than 24,500 species. For the study, published in the journal Science Advances, ...