by Gayathri Vaidyanathan / Discovery News

At least 111 manatees, 300 pelicans, and 46 dolphins — emaciated to the point of skin and bones — were all found dead in America’s most biologically diverse estuary.

Something is seriously wrong. The northern stretches of the Indian River Lagoon of Florida has a mass murder mystery that biologists are racing to figure out. The lagoon contains more species than anywhere else in the U.S. It is a barrier island complex stretching across 40 percent of Florida’s coast, around Cape Canaveral, and consisting of the Mosquito Lagoon, the Banana River and the Indian River Lagoon.