Post image 'Bobbit-Worm' by Hendra Tan
Their name comes from the John and Lorena Bobbit Case
They live tropical and subtropic bodies of water in the Indo-Pacific. They've been discovered in Bali, New Guinea, the Philippines, Australia, Fiji, and Indonesia!
They can reproduce asexually via segmentation!
They can live between 3-5 years and grow on average 3 feet long, although one was discovered at 10 feet long!
Photo by Ken Traub
The fossil record shows they've been around for 20 million years!
They like to build mucus lined burrows on the sea floor from where they ambush their prey!
Photo by eunice khoo
Despite having a pair of small eyes they use their antennae to detect prey as they are virtually blind!
Peters' Monocle Bream tropical fish have been observed 'mobbing' Bobbit Worms by directing sharp jets of water at them in order to deter their attacks!
Bobbit Worms can decimate aquariums. They can arrive as small worms hidden in rocks and corals and can remain undetected for quite some time. Don Arndts heroic battle against a Bobbit Worm is the stuff of legends. His foe was a wily adversary despite the many attempts to poison and kill it, including glue and crushed glass hidden in baited shrimp! TLDR version here
Their jaws are wider than their bodies are retractable and open like scissors!
Their bodies are covered in tiny bristles which grip, and help it to explode out of it's burrow while hunting!
Now give the little fella a kiss!
(photo by Pauline Walsh Jacobsen)
edit- most info from here and I forgot to credit the last image
Great write up and that story about one in a fish tank was a fun read!
It's a rollercoaster ride, I'm surprised by the amount of abuse it took...one tough beastie!