356 elephants dropped Dead. Did this bacteria poison them?

In May and June, conservationists discovered the carcasses of 356 elephants in Botswana’s Okavango Panhandle. On Monday, Botswanan officials announced their answer: Neurotoxins produced by cyanobacteria, a type of microscopic algae, caused the elephants to die after they drank from large puddles that formed after rains.