Might brain damage linked to Alzheimer's be one of the reasons dolphins lose their way and end up stranded? It's a possibility explored in a new study of 20 common bottlenose dolphins ( Tursiops truncatus ) stranded in the Indian River Lagoon, Florida, between 2010 and 2019. What's more, the researchers behind the study have linked the signs of dolphin neurodegeneration to climate change – via toxic blooms of algae and bacteria that are becoming more frequent and widespread in warmer waters. An