Deep-sea worms feast on the tooth of useless sharks that fall to the seafloor. These worms have been beforehand identified to eat whale bones and the stays of bony fish, however when these are scarce, shark tooth could also be a key supply of meals.
Osedax worms are strange-looking creatures with frilly pink gills. They don’t have any mouth or abdomen, in order that they depend on microbes dwelling inside them to soak up …
Source: www.newscientist.com