By studying the DNA of a blind cave fish, scientists think they can better understand ancient mammals.

Teaching respect for insects, fish, and other non-mammals can have positive impacts on children’s development—and their love for the planet.

Rare Fossils Reveal New Species of Ancient Gliding Mammals Two exquisitely preserved finds from the Jurassic provide new clues to the evolution of airborne animals.

The present is the key to the past. Every geologist worth their sodium chloride knows this. The famous phrase, a distillation of the principle of uniformitarianism, can be seen emblazoned on mugs ...

These uniquely American mammals are featured in National Geographic Kids' January edition.

Mammals took over the world after the last big extinction event. Now, one mammal is undoing all of that—us.

Mammals lacked this advantage, as well as the physiological benefits the air sacs brought with them, and this may explain why the biggest mammals of all time were still small compared to the ...

Extreme Mammals packs a punch from the moment you enter–through the legs of the largest land mammal ever (the Indricotherium, which weighed as much as four adult African elephants)–until the ...

About 12,000 years ago the world suffered one of the greatest mass extinctions of all time. A unique assemblage of small mammals from California may help to explain what happened.

In 2016 Milinkovitch announced that the bumps were indeed placodes, placing the structures in reptiles’, birds’, and mammals’ common ancestors more than 300 million years ago.

Some mammals need roughly 24 million generations to go from mouse-size to elephant-size, a new study says. Using both fossil and living specimens, scientists calculated growth rates for 28 ...

Dinosaurs' superior lungs may have allowed them to outcompete early mammals, according to a new study of modern-day alligators. Scientists found that a method of high-efficiency breathing used by ...