14K views · 274 reactions | 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. Crazy Monsters | Smithsonian Channel | Facebook

803K views · 1.8K shares | Happy Hagfish Day! What is a hagfish—and why does it have its own holiday? Well, we can answer the first question. Get to know the slimy ocean dweller on Crazy Monster: Sea Creatures - https://bitly.com/33kfIxX | Smithsonian Channel Aviation Nation | Facebook

This fish has an interesting way to protect itself from predators. | Vocativ