Marine scientists are worried that the west coast Pacific [Dungeness crab](http://en.wikipedia.org/wiki/Dungeness_crab “Wikipedia”) could be invading East Coast waters after an adult male was unexpectedly found off the coast of Massachusetts by a fisherman on July 19.

[Read](http://www.msnbc.msn.com/id/14704299/ “Read the Story”) (MSNBC)