Sperm Whales Blow Bubbles to Maintain Buoyancy While Sleeping Vertically
Researchers have discovered that sperm whales blow bubbles while resting vertically just beneath the ocean surface, a mechanism that helps these breath-hold divers counteract expanding lung gases and maintain neutral buoyancy during short 10- to 15-minute napping bouts. Sperm whales are known for their dives into the deep ocean. But when it is time to … Read more