Marty’s photo of the day #4918: While Deb and I were returning from a night hike on the island of Waisai, we noticed dozens of crabs on the wall of a shed and on the path in front of us. As we learned later, they were part of an annual nighttime migration to the ocean to mate. Here’s the cutest crab in the bunch.

Photographed last month in the Raja Ampat region of Indonesian New Guinea.