Tall Tails

So Common Thresher Sharks really do whip small fish with their tails to kill or stun them.

I had thought this was fairly well established. But I guess these days no notion gets any respect until it's been caught on video.

But this aspect, courtesy of BBC, I did not know:

The discovery explains why thresher sharks are often caught by their tails by baited long-line fishing gear....

Fishermen often return sharks after the struggle of the catch, but because threshers tend to be caught by their tails, they have difficult breathing underwater when hooked.