Toxic cyanobacterial blooms may be driving dolphins to strand themselves by causing Alzheimer’s-like brain damage. Credit: Shutterstock For many nature enthusiasts, few scenes are as distressing as finding a stranded whale or dolphin lying helpless on the beach. When these animals are still alive, marine biologists and volunteers rush to assist, shielding them from the sun and preventing their skin from drying out by pouring seawater over them or draping them with wet towels. Others work