Ever wonder why sharks have so many differently shaped teeth or why they keep regrowing throughout their lives? Dr. David ...

A common species of shark in New Zealand has been recorded making clicking sounds underwater. Researchers hypothesise that the noise comes from the spotted estuary smooth-hound forcefully snapping ...

The megalodon is an extinct species of ancient shark. “They were much larger than contemporary sharks, probably 40 to 60 feet long, potentially even more,” Jones explained. The auctioned teeth ...