Crabs
Added 2022-03-08 19:00:05 +0000 UTCFish have to constantly filter salt out of their bodies to keep it from dehydrating them. Crabs have this fun thing where they can sense the presence and location of other aquatic animals by detecting shifts in the degree of saltiness of the water.
Today we've got some familiar crabs; tomorrow come the wildshape/polymorph crabs.