What keeps the boneless, jawless hagfish thriving after more than 300 million years? SLIME. The goop it exudes – a mix of mucus and special protein cells – expands to 10,000 times its original volume in less than half a second, potentially clogging the gills of competitors and predators. | Deep Look • PBS

14K views · 275 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

Hagfish release large amounts of slippery mucus when they're in stressful situations—like in a car accident. | National Geographic

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

1.4K views · 78 reactions | Happy #HagfishDay! Jawless and boneless, slime-producing hagfish feed off animal carcasses on the seafloor. While this might not be the most appetizing to us, in so doing, hagfish perform an important ecological function, helping to clean and recycle materials on the seafloor. . . So on Hagfish Day, remember that one doesn't have to be pretty to be important. | NOAA Ocean Exploration | Facebook