More sad news from the Gulf: Four baby dolphins have washed up on the shores of Mississippi since Monday—adding to a growing tally. The Sun Herald reports that 18 stillborn or infant dolphins, some not even three feet long, have been collected this year. They're washing ashore at 10 times the normal rate, say researchers. A total of 28 dead dolphins have been reported thus far this year. "With the oil spill, it is difficult," says a researcher. "We’re trying to determine what’s causing this. It could be infectious related. Or it could be non-infection." (More Gulf of Mexico stories.)