Die-off of southern right whales still a puzzler

By Megan GannonLiveScienceScientists still don't know why hundreds of baby southern right whales are turning up dead around Patagonia, a decade after observers first saw signs of the worst die-off on record for the species, according to the Wildlife Conservation Society (WCS).With no evidence of infectious diseases or deadly toxins in whale tissue samples, scientists are scrambling to determine a ...    

Read the whole article on MSNBC: Science

More from MSNBC: Science