paleontology

A preserved dinosaur embryo is a fossilized specimen of a developing dinosaur found inside an egg or shortly after hatching. These fossils provide direct evidence of how dinosau...

The closest relative to T. rex is the carcharodontosaurid genus Acrocanthosaurus, a large-bodied predatory dinosaur from the Early Cretaceous of North America. This relationship...

The dire wolf is an extinct large canid that lived across North and South America until about 13,000 years ago. Often compared to the modern gray wolf, it was similar in size bu...

Pleistocene wolves were generally larger than most modern gray wolves, with body masses often estimated in the range of 60–80 kilograms for large individuals, standing about 8...