When danger strikes, humans usually have two choices — run or fight. But in the wild, some animals have figured out a third, much stranger option: drop part of their own body to survive. It’s called ...

As apex predators, lions (Panthera leo) roam the African savanna, and occasionally even the rainforests, as the only social big cats. A small, isolated population of Asiatic lions (Panthera leo ...

Imagine this: you accidentally lose an arm or a leg, and instead of rushing to the hospital, your body just grows it back. Sounds like something out of a superhero movie, right? But for many creatures ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The heads of most ...

When temperatures are too hot, we look for air conditioning. When flood waters enter our homes, we seek higher ground. When hurricanes approach us, we evacuate or stock up on essential supplies.

In nature, survival often depends on smart tricks and hidden abilities. While humans replace old skin cells quietly and almost unnoticed, many animals go through much bigger and more dramatic changes.

Imagine losing a limb and growing it back like nothing ever happened. Sounds like science fiction? Not for many animals in the natural world! While humans are capable of healing cuts and fractures, ...

At anatomy dinners, experts delve into how body parts function in both animals and people, and explain how the part is turned into food. (Photo: Jason Bartlett) When Dr. Jonathan Reisman was in ...

The long-lost 'body' of mysterious ice age animal carving was discovered in German cave, but archaeologists aren't sure if it's a cave lion or cave bear. When you purchase through links on our site, ...

Some warm-blooded animals are shapeshifting and getting larger beaks, legs and ears to better regulate their body temperatures as the planet gets hotter, according to a new review of existing research ...