A set of 130-million-year-old footprints unearthed in Brazil appears to belong to the largest mammal known from the age of ...

What you’ll discover in this article ・Tracks of what appears to be the largest mammal of the dinosaur era have been found in ...

For example, the Mixodectes skeleton is significantly larger than a partial skeleton of Torrejonia wilsoni, a small arboreal mammal from an extinct group of primates called plesiadapiforms, that was ...

Scientists found an unexpected aging pattern in a mostly intact juvenile mammal skeleton from the paleontological period. By Jack Tamisiea Small mammals often live fast and die young. Rodents and ...

A 236-million-year-old cynodont fossil from Argentina contains evidence that the animal may have given birth to live young rather than laying eggs. Bone growth patterns and estimated newborn size ...

An artist's impression of the shrew-like Krusatodon kirtlingtonensis, which a new study suggests lived long and matured slowly, in contrast to modern small mammals. Maija Karala Roughly 166 million ...

For more than 140 years, Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery. What little was known about them had been mostly ...