Sperm whales are large marine mammals known for their distinctive, square-shaped heads and deep-diving abilities. They can grow up to 60 feet long and weigh around 45 tons. These whales primarily hunt giant squid in the deep ocean, diving to depths of over 10,000 feet in search of food. Sperm whales are highly social, living in groups called pods, and are known for their powerful, echolocation clicks used for communication and navigation. Their dark gray or black skin and prominent blowholes make them easily recognizable. Despite their size, sperm whales are gentle giants, facing threats from climate change and human activities.