Lionfish Are a Plague. Can Training Sharks to Eat Them Work?

We had no idea they were such a pest. The fish itself was quite fascinating to learn about...

Lionfish, which are native to the Indo-Pacific but were accidentally introduced to the Caribbean, are decimating native fish species. To help limit their damage, scientists are teaching sharks to prey on them.

Smithsonian Channel

This Terrifying Worm Snatches Fish from the Ocean Floor

It's like watching a horror movie-slash-documentary. Fascinating...

Sand strikers, also known as bobbit worms, are primitive-looking creatures that lack eyes, or even a brain. Despite this, they are savage predators who shoot out grapple-like hooks to reel in passing fish.

Smithsonian Channel