In 2015, 337 baleen whales died and washed up on beaches in Patagonia, Chile. It’s the largest mass die-off of baleen whales ever observed. A deadly bloom of algae called a red tide is attributed as the cause. Scientists set up time-lapse cameras to study the effects of the carcasses on the surrounding area, and also to study the different stages of decomposition. They hope the footage will help identify the time and cause of death in future beachings.

Watch this ice bridge form over years and then collapse in a spectacular crash.