Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A study out of Japan showed how targeting genes can regrow teeth in animals. Now, the team has turned to ...

We share our sharp canine teeth with lions, hippos, and other mammals. But believe it or not, they have nothing to do with tearing into meat. Instead, our ancestors originally used them to fight for ...

Dental researchers from Tufts University took cells from the dental pulp of a human tooth and mixed them with cells from the enamel of a pig tooth and seeded them onto a “scaffold.” It was then grown ...

Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to sink into their prey, while herbivores tend to have flatter teeth to grind down their plant-based meals. Some ...