Caviomorph rodents represent a remarkable adaptive radiation of hystricognath rodents in South America, having colonised the continent from African ancestors in the Eocene. Once isolated on the newly ...

Seventy-three million years ago, in Alaska's dark and frozen landscape, a group of small, rodent-like creatures was quietly ...

The humble rodent “thumb” may not seem like an obvious window into evolution, but its keratinized tip – the unguis (hoof, claw, or nail) – turns out to reveal striking insights into rodent history and ...

One of the most important steps in the evolution of modern mammals was the development of highly sensitive hearing. The middle ear of mammals, with an eardrum and several small bones, allows us to ...

Foot bones that are separate in small hopping rodents are fused in their larger cousins, and a team of researchers at the University of Michigan and University of California, San Diego, wanted to know ...

The legions of squirrels breaking into backyard bird feeders benefit from a surprising trait developed over millions of years—tiny hands with four claws and a human-looking thumbnail. This combination ...

With rodent teeth, bat-like ears and a woodpecker-inspired hunting strategy, this primate may just be one of evolution’s ...

Foot bones that are separate in small hopping rodents are fused in their larger cousins, and a team of researchers wanted to know why. Foot bones that are separate in small hopping rodents are fused ...