Mammals could shrink as the carbon dioxide heightens and warms the planet Earth.
Experts studied that a comet impact that happened 55 million years ago may explain the widespread of mammals today.
Turns out, humans are actually very violent in nature -- to the point of being murderous.
Scientists have discovered that skin appendages such as scales, feathers and hair evolved from a common ancestor 320 million years ago.
When you're talking with a person in a crowded place, you can focus your attention on the conversation you're having while ignoring the ones happening around you. But how is this possible?
Scientists have discovered a new genus and two new species of extinct kangaroos that couldn't do what their contemporaries can: hop. However, the new species may have actually been ancestral to all kangaroos and wallabies living today.
The mysterious, armored and extinct glyptodonts were actually giant armadillos.
A study finds that big-brained mammals are more likely to go extinct.
Researchers from the University of Punjab in Pakistan have unearthed a 1.1-million-year-old stegodon tusk.
Researchers recreate extinct zebra subspecies 'Rau quagga' in South Africa.