While bones can regrow themselves when they break, teeth aren’t so lucky, and that leads to millions of people worldwide suffering from some form of edentulism, a.k.a. toothlessness. Now, Japanese ...

Humans are the slowest-maturing mammals on Earth. No other species invests more time, energy, and social infrastructure into raising its young. Why do humans grow so slowly compared to other animals?

Here’s what you’ll learn when you read this story: The word “chimera” usually evokes images of mythological, multi-headed beasts, but the term also comes with more modern, scientific connotations. For ...

Equids, members of the horse family including horses, donkeys and zebras, share curious features called chestnuts. Found on every horse, they appear as toughened growths on their limbs, and can be ...

When a baby babbles and their parents respond, these back-and-forth exchanges are more than adorable-if-incoherent chatter—they help to build a baby's emerging language skills. But it turns out this ...

If you have teenagers — or were once a teenager yourself — you've probably experienced this: Your kid's jeans fit perfectly in September, but by December they're showing ankle. The adolescent growth ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A sliver of what makes sharks so intriguing comes with their ability to regrow teeth. And while a group ...

For decades, animal models have been the gold standard for preclinical testing of potential drugs. Yet, even the best animal models are not perfect. For example, small rodent species with engrafted ...

CINCINNATI (WKRC) - A recently-published study revealed that scientists grew human-like teeth in a pig's mouth by using a mix of human and pig DNA. The new study, published in Stem Cells Translational ...

There are many creatures that have the capacity to grow new limbs. These organisms are regarded as “lower organisms”, yet they share one ability beyond those of higher order mammals: the ability to ...