Scientists are puzzled over what is causing hundreds of fish to wash up dead in South Florida, including an endangered species native to the region.
Another day of dead marine life surfacing in Biscayne Bay as the swath of suffocated fish appears to be spreading.
Southwest Florida is reeling from a toxic algae bloom called red tide. Hundreds of tons of dead fish are washing up on beaches.
The Florida Keys is experiencing higher than usual fish kills this summer, but wildlife officials don't think it's part of a red tide or other type of algae bloom affecting other parts of South Florida.
NPR.org