Green crabs look a lot like the other crabs living on the Oregon Coast. One major difference, though: they're not supposed to be there.
Green crabs are native to Europe, not North America; here, they are an invasive species, with the potential to crowd out native animals and plant life as well. Their numbers are growing in the South Slough National Estuarine Reserve on Coos Bay and elsewhere.
Reserve Lead Scientist Shon Schooler and researcher Kim Sims visit with details of the crab invasion.