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.

There are way more bats than you might think. Second only to rodents, bats make up around a fifth of all mammals, with over 1 ...

Tusks are a striking feature of many animals -- elephants, hippos, warthogs, walruses -- and are often sought-after by humans. But no birds, fish or reptiles today sport this extreme and ever-growing ...

The lower jaws of lizards, birds, fish and even dinosaurs are comprised of multiple bones per side. Yet mammals diverged from all other vertebrates and settled on just one bone, repurposing the extra ...

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

We mammals and birds are homeothermic, or “warm-blooded.” We maintain a relatively constant temperature regardless of the temperature outside. There are a variety of strategies that are used to ...

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 ...

🛍️ Amazon Prime Day is live. See the best deals HERE. 🛍️ By Laura Baisas Published Mar 12, 2024 12:00 PM EDT Get the Popular Science daily newsletter💡 ...

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 ...

Women usually live longer than men, and animals show the same pattern. Evolution, genes, and parenting explain why.

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