May 12, 2021

Striped Shore Crab (Pachygrapsus crassipes)_Flickr_CC_Heather Paul

Two striped shore crabs hide in a crevice under a rock. Their dark carapaces help them blend into the shadows, while the color of their stripes echoes the yellow-green of the growths on the rock surrounding them. Photo by Heather Paul, via Flickr shared under Creative Commons License.