"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 ...

Paleontologists have discovered a new prehistoric mammal species in Colorado that lived during the age of the dinosaurs and may have been a swamp-dweller. In a study published in the journal PLOS ONE, ...

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Life looked different after an asteroid crashed into the planet around 66 million years ago. The dinosaurs died out, the arboreal mammals declined, and the terrestrial mammals thrived. The traditional ...

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 ...

Explores the world of prehistoric mammals, comparing them to their modern descendants. Pop-up sections feature three-dimensional skeletons and some pull tabs.

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 ...

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

More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, new research has revealed. More mammals were living on the ground several ...

Hundreds of millions of years ago, a lake lined with coarse sediment was battered by heavy waves and storms. The water here was completely devoid of oxygen, but the land around the lake held ...