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 ...

There are 76 species of hagfish around the world. All are found in salt water but range in preferred depth from the shallows to about 1,700 metres deep. The largest species, Eptatretus goliath, has ...

Hagfish are bottom-dwelling marine animals that are capable of producing startling amounts of defensive slime when they are provoked. Understanding the burrowing activities of hagfish could lead ...

While it’s impossible for humans, some animals in the natural world do have multiple hearts! From two to even twenty-three ...

It eats carrion, whale waste, and other decomposing animal tissues underwater. This helps keep the ecosystem clean and facilitates nutrient cycling in the seas. Besides, hagfish do not eat often ...