These
gruesome creatures are capable of turning their mouths inside out and
dragging themselves around by their tooth-lined throat.
Now
scientists have found that these bizarre dental structure could be key
in helping find previously unknown penis worm species from all over the
world.
Since
penis worms are among the first-ever predators, discovery of new
species is important for helping scientists understand how animal life
on Earth developed.
Reconstructing
the teeth of penis worms, or priapulids, in fine detail has enabled
researchers to compile a 'dentist's handbook' of the species.
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