Food Web

The giant crab performs a useful ecological function in keeping the
seashores free of large carrion that would otherwise rot. On the
shore, the ultimate predators -- humans and demihumans -- hunt it
for its superb meat and hard chitineous shell, which is prized by
some for making armor and shields.

Human senses.
Main Predator; Squid, Octopus.

Main prey; Mollusks, lowlife.

All Dolphins have High to medium

senses, Echolocation,
and Darkvision, Detect Magic 180’,

and sometimes even infravision 60’or 90’.

More links

Affichage d'un monstre (free.fr)