The passes act as ladders that allow eels to swim up and over weirs and more easily through the rhynes and ditches. The ...

Hagfish shoot slime that clogs gills and deters predators. Learn how they do it, why it's important, and how it could help humans too.

Watch this man's peaceful deep sea dive turn dark when a furious and huge eel attacks and bites him on his arm!

With more than 35,000 species of fish in the world today, it’s not surprising that there are some deadly ones among them.