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

Scientists discovered three new mammal species that survived in Alaska’s ancient Arctic during the age of dinosaurs.

Today's Arctic may feel remote and desolate, but more than 70 million years ago, it was a surprisingly lively place for some ...

Three previously unknown species of rodent-like mammals that once scurried alongside dinosaurs in what is now northern Alaska ...

Bats, rodents, hedgehogs, and shrews are mammals among the orders that are predicted to have the most undescribed mammals. (Pictured: a bicolored shrew) Werner Korschinsky via Wikimedia Commons under ...

Modern mammals are known for their big brains. But new analyses of mammal skulls from creatures that lived shortly after the dinosaur mass extinction show that those brains weren’t always a foregone ...

For over 50 years the Marine Mammal Protection Act has prevented population declines and accelerated species recovery. Take ...

At first glance, dolphins, sharks, and whales all cut similar figures as they glide through the ocean: sleek fins, smooth ...

A large study reveals the way relative brain size of mammals changed over the last 150 million years. Scientists from Stony Brook University and the Max Planck Institute of Animal Behavior have pieced ...

Human childbirth is commonly viewed as uniquely difficult and dangerous. The reason: The combination of bipedalism and large ...