While docked after studying algae blooms in lakes Erie and Superior, the crew of the Great Lakes research vessel Blue Heron noticed a black, tar-like substance oozing from the rudder shaft. Scientists at the University of Minnesota Duluth’s Large Lakes Observatory were surprised to find that the material was teeming with life-forms, some of which were unknown microorganisms. The mysterious substance was informally named “ShipGoo001.” Read the full story by CNN.