Life
The first teeth were sensory organs on the skin of ancient fish
Teeth are good for chewing and biting, but they are also sensitive – and that may have been their original function hundreds of millions of years ago
News
Advertisement
Teeth are good for chewing and biting, but they are also sensitive – and that may have been their original function hundreds of millions of years ago
The attempted creation of dire wolves could undermine conservation efforts by making people think extinct species can be revived, says the International Union for Conservation of Nature