Shark numbers

Heading to the beach this summer? Here's some surprising news about sharks.

Explore the science behind the video here:

Latest videos

Did pangolins start the pandemic?

1:22
Video: Did pangolins start the pandemic?

Tracking killer whales

2:05
Video: Tracking killer whales

Why do otters juggle rocks?

2:41
Video: Why do otters juggle rocks?