Rockgrub

A small, luminescent scavenger, roughly thumb-sized. This creature may be a distant relative of the sand shark, sharing that species' unusual limbs, segmented exoskeleton and burrowing behavior.

1Jaw

Its circular set of teeth is designed to tear up clumps of coral and sea grass caught on the rocks.

2Limbs

Five legs, two arms and a large flipper allow the rockgrub to cling to and walk across rock faces in search of food, and swiftly swim to safety when under attack.

3Green Luminescence

Glowing green in the dark would seem like a poor survival strategy, but this adaptation may be a mating behavior or other specialized process, engaged in by only a fraction of the total population at any one time. Or perhaps being eaten is simply part of the rockgrub's lifecycle.

AssessmentHarmless