A blue crab in its "ambush pit" at a coastal salt marsh. Photo: Aileen Devlin/Virginia Sea Grant

VIDEO: Va. Blue Crabs Attack From Land, First Time Recorded by Scientists

Just when you thought you know the Chesapeake Bay blue crab top to bottom… a researcher at Virginia Institute of Marine Science has made a bizarre discovery.

For the first time, blue crabs are captured on video in a salt marsh well upland from the shoreline, attacking unsuspecting fiddler crabs!

Cheryl Costello shows us the surprising ambush technique scientists haven’t seen before from Bay crabs. Watch below: