The scientists discovered that hagfish create a u-shaped burrow by utilizing a 'thrash' phase with vigorous swimming coupled with side- to-side head movements followed by a 'wriggle' phase that ...

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 ...