More than 66 million years ago, Mexico was home to numerous species of dinosaurs, some of them as terrifying as T. rex.

Towards the end of the last ice age, an ancient wolf feasted on a young woolly rhinoceros (Coelodonta antiquitatis). When the ...

"Prehistoric World" is a new book by Aaron Woodruff, the museum's collection manager for vertebrate paleontology. It includes profiles and illustrations of prehistoric mammals such as Livyatan ...

Recent discoveries have shown that brightly colored crests and eye-catching patterns adorned many dinosaurs. Meanwhile, our earliest mammalian ancestors survived these flamboyant predators by being as ...

A New York homeowner made a remarkable discovery in their backyard last September. The teeth from a complete mastodon jaw were peaking out of the soil. The stunning find near the hamlet of Scotchtown ...

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Paleontologists have revealed what may be the earliest known saber-toothed animal to have ever lived—a predator that roamed our planet before the age of the dinosaurs. In a study published in the ...

According to most experts, the first mammal was Morganucodon, a small, shrew-like rodent that appeared during the Jurassic Period, approximately 200 million years ago. It weighed a few ounces and ...

A university student on a fossil-hunting field trip in Dorset made a stunning discovery: a 145-million-year-old jawbone belonging to a previously unknown mammal species with razor-like teeth. With the ...

People are too dinocentric," says paleobiologist Donald Prothero. "The really interesting stuff goes on with mammals." He should know. After decades of work, the Occidental College professor emeritus ...

1. The age of mammals -- 2. The origin and early evolution of mammals -- 3. Marsupials : pouched mammals -- 4. Placental mammals (Eutheria) -- 5. Xenarthra : sloths ...