100-Million-Year-Old Hagfish Complete with Slime Kit Discovered
Eyeless, jawless hagfish — still around today — are bizarre, eel-like, carrion-eating fishes that lick the flesh off dead animals using their spiky tongue-like structures. But their most well-known feature is the sticky slime that they expel for protection.
And now, scientists know that hagfish slime is robust enough to leave traces in the fossil record, finding remarkable evidence in a fossilized hagfish skeleton excavated in Lebanon. This new discovery is also prompting researchers to redefine the hagfish's relationship to other ancient fish and to all animals with backbones.
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