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Fiddler crabs are migrating north to cooler waters

How the Great Marsh in the U.S. northeast will respond is unclear

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Ongoing work on fiddler crabs is one example of researchers zooming in on how climate migrants could shift ecosystems as climate change continues.

By Luke Groskin

This video was supported by funding from the Howard Hughes Medical Institute.

TRANSCRIPT

David Johnson: So in 2014, we were on a muddy bank in the marsh up here in Massachusetts, and I saw this small crab scuttle across the mud bank and pop into a hole. And so I dug out the crab, and it was a fiddler crab.