Angry Mutant Crabs Destroying Everything in Their Path

From FOX News:

Angry green crabs from Nova Scotia, angrier than their already ornery green cousins in Maine, are migrating south. They have started to destroy the coastal ecosystem off the shores of Maine, as they eat more than their share of soft-shell clams and wreck native eel grass[.]
[.]
"What we're seeing is this insane level of aggressiveness," [said Markus Frederich, a professor at the University of New England.
[.]
[The damage done by the crabs compares] to that of Edward Scissorhands, as they tried to look for marine organisms to eat.