Despite not being particularly mammal-looking, the earliest true mammals began to rise about 200 million years ago, when dinosaurs were still roaming Earth. However, the therapsids still had important ...

From palm-sized Chihuahuas to Great Danes that could pass for small horses, dogs today come in more shapes than any other ...

Domestic dogs are among the most diverse mammals on the planet. From the tiny chihuahua to the towering great dane, the ...

The black-tailed prairie dog is an intelligent, sociable rodent that's a keystone species in the prairie ecosystem it calls home. This precocious little mammal is perfectly suited to its environment, ...

When most people think of whiskers, they think of cats — even the most straightforward drawing of a cat often includes long whiskers — but did you know that dogs have whiskers too? Just like cat ...

With an estimated population of 700 million individuals, domestic dogs are the most abundant carnivore in the world and are present everywhere that man has settled. Domestic dogs, commonly referred to ...

This is a preview. Log in through your library . Abstract This study addressed the initial effects of a reintroduction of Gunnison's prairie dogs (Cynomys gunnisoni) on resident small mammal and plant ...

RIO DE JANEIRO - High above this Brazilian city, in a jungle blanketing a mountain, the turtles were out and the scene was hopeful. Scientists were reintroducing 15 mud-caked tortoises to this urban ...

Fossil-hunters in China have discovered two skeletons from a kind of animal never seen before: a dog-sized mammal that lived about 135 million years ago. The discovery overturns the conventional ...

An astonishing new fossil unearthed in China has overturned the accepted view about the relationship between dinosaurs and early mammals. The specimen belongs to a primitive mammal about 130 million ...