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.

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DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.

---+ What happens when a predator bites into a hagfish?

That predator will get a mouthful of slime! When threatened, the hagfish releases slime from pores that run alongside its body. That slime swells to more than a liter in less than half a second.

---+ Why does a hagfish have loose, baggy skin?

The hagfish's loose skin is a first line of defense. Its vital organs move out of harm's way inside of that baggie onesie, allowing the hagfish time to release slime.

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Banana Slugs: Secret of the Slime
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You're Not Hallucinating. That's Just Squid Skin.
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🏆Congratulations 🏆to the following 5 fans who gave us the best WRONG ANSWERS for our Community Tab GIF Challenge, "Why does the hagfish tie itself in knots?"

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Mister Pomelo 39 votes
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Alex Da Cat 10 votes
PotatoCatStar 7 votes

We also had one *correct* answer:

& Leo

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