In the video the worm projects a slimy net onto the man’s hand!

Believe It or Not, that web is part of the worms’ body!

It’s called a proboscis and the worm keeps that inside its body until it forcefully squeezes out the appendage to catch small animal prey.

Kyle Hill from the Nerdist Blog explains:

worm

But what sets ribbon worms apart from all other worms is their namesake proboscis. This feeding appendage is held in a sheath or sac above a ribbon worm’s gut. When prey is detected, muscles rapidly contract and force fluid into the sheath, which turns the proboscis inside-out and forces it through the proboscis pore at the head of the worm. It wraps around prey and is then drawn in for a meal. In some species the proboscis can extend out 30 times the length the worm.

 


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