The hagfish is a slime-emitting ocean-dweller that's remained unchanged for 300 million years--and it shows. It has a skull (but no spine), velvet smooth skin, and a terrifying pit of a mouth that's lined with rows of razor-sharp teeth.
Deep beneath the sea, bizarre and remarkable creatures lurk, featuring a collection of extreme adaptations developed over 500 million years of evolution. Witness a strange showcase of fish, from crushing jaws to glowing eyelids to gaping maws, and get an up-close look at some of the weirdest, fastest, wildest, and mightiest creatures in the watery underworld. It's a glimpse of nature like you've never seen before, and we're giving you a front row seat.
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