Blue Land Crab at Pelican Island National Wildlife Refuge

From USFWS National Wildlife Refuge System:

#USFWS #Florida

This blue land crab at Florida’s Pelican Island National Wildlife Refuge (http://bit.ly/28SiYlE) appears to be on high alert. Land crabs orient themselves by using polarized light during the day, and by identifying the brightest part of the horizon at night. However, other cues such as vibrations, landmarks and winds may aid in orientation. Photo by Keenan Adams/U.S. Fish and Wildlife Service




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