More than 100 dolphins have died in the Brazilian Amazon rainforest in the past week as the region grapples with a severe drought, and many more could die soon.
Large numbers of dolphins were seen swimming off the coast of CaliforniaA massive pod of dolphins was caught on camera swimming off the coast of Monterey
Researchers are still weighing options but the best candidate for the deaths is warmer water and drought. Are there dolphins in the Amazon? How many Amazon River dolphins are left?