The sperm whale's top-heavy body is very suitable for diving. In addition, it likes to eat huge cephalopods. Most of them live in the deep sea. Sperm whales often "breath-hold dive" for up to 10 seconds to hunt giant squid. It can dive to a depth of 2,200 meters in 1.5 hours, so it is the mammal diving champion. Sperm whales often fight each other with swords and swords against the giant squid, the largest invertebrate animal. The largest squid can reach 18 meters and weigh 30 tons. Someone once saw a fierce fight between a sperm whale and a giant squid in the tropical ocean. They fought from the deep sea to the shallow sea. Either the sperm whale ate the giant squid, or the giant squid covered the whale's blowhole with its tentacles, causing the giant whale to suffocate to death. , In this way, the sperm whale becomes a "delicious meal" for the giant squid.

The sperm whale swallowed the giant squid in one bite, but could not digest the squid's parrot. They gradually form a viscous dark substance in the small intestine, weighing 100-1000 grams, and once weighed 420 kilograms. Its maximum diameter is 165 centimeters, and this substance is "Longyanxiang". It is stored in the colon and rectum. It smells bad when it is first taken out. After being stored for a period of time, it gradually develops a fragrance that is better than "musk"