Why snakes have fangs

From normal snake teeth to turn into hypodermic needles, here's how snake fangs evolved.

Read the paper:

Latest videos

The scientific effort to remove greenhouse gases

3:36
Video: The scientific effort to remove greenhouse gases

Painkillers embedded in backyard plants

2:11
Video: Painkillers embedded in backyard plants

How some Aussie reptiles switch sex

1:57
Video: How some Aussie reptiles switch sex