Sperm Whales blow bubbles to achieve restful, vertical sleep

Sperm whales have been observed blowing bubbles to help them sleep vertically, allowing them to rest while still being able to quickly respond to predators. This unique behavior is crucial for their survival in the ocean. Researchers are studying this phenomenon to better understand whale behavior and conservation. Engineers may be interested in the application of this concept to underwater systems or robotics. Further research is needed to fully understand the mechanisms behind this behavior.