First, no one is sure why we, or any other animal, dream. During the past century, however, scientists have made significant progress in understanding the factors that influence sleep and dreaming.

Have you ever wondered why you don’t have thick hair covering your whole body like a dog, cat or gorilla does? Humans aren’t the only mammals with sparse hair. Elephants, rhinos and naked mole rats ...

It isn’t just snakes that fill up the reptilian quota of egg-laying animals. A group of reptiles — known as squamates — ...

The bluff at La Jolla Cove in San Diego is covered with pelicans and cormorants; below, some two dozen sea lions lounge on a ...

From its long, flexible trunk to its loud trumpeting sounds, there’s a lot to admire about an elephant. But how much do you know about these massive creatures? Where do they live? How big can they get ...

Most female mammals have a finite number of egg cells and become less fertile with age, but naked mole-rats seem to be eternally fertile. Now, researchers think they've cracked how these weird mammals ...

A new study shows farming and livestock reshaped global mammal communities, collapsing natural boundaries after the last Ice ...

An error has occurred. Please try again. With a Lewiston Sun Journal subscription, you can gift 5 articles each month. It looks like you do not have any active ...

A highly contagious avian flu is infecting birds all over the globe. In the U.S., farmers have lost, or had to kill, over 58 million birds to try and prevent the spread of the virus. The H5N1 strain ...

In an effort to protect grasslands, a plan to cull pikas and zokors in China is having the opposite effect, say scientists. Now, a new paper reveals another example of the eradication of a keystone ...