Sperm whales sleep
The scene where the sperm whale sleeps is spectacular, very much like an alien spaceship from the movie Advent. These deep-sea pillars are very vertical in the sea like adventists, and their sleeping posture is speculated to be because they have lighter blubber in their brains, and their bodies will naturally levitate in the sea when they sleep. Sperm whales sleep for only 7-15 minutes at a time, and their total sleep time accounts for only 7% of the raw fish, making it one of the least sleep-time mammals in the world.
Movie "Arrival"
They love to eat the huge gun squid in the deep sea, including but not limited to the well-known king sour squid. But there is a lot of ammonia in this thing, and the little partner who wants to try it gives up this strange idea as soon as possible. Sperm whales hunt very similarly to bats, both through echo localization to find and lock on to prey, and large squid will also die and cling to the head of the sperm whale, but this is a useless struggle, they can only leave proof of the fate on the face of the sperm whale. Sperm whales eat 3.5% of their body weight every day, and in addition to squid they also prey on ray giant sharks and other marine life, and their mouths have evolved over millions of years to be unsuitable for catching larger sea beasts, nor are they able to catch fish like killer whales and dolphins.
King sour squid
Sperm whales prey on
Although the sperm whale is not as large as the blue whale, it is still the largest toothed whale, and the sperm whale is active in most of the ice-free waters of the world, with females 10-12 meters long and males reaching 14-18 meters long. Oversized males can exceed 20 meters in length and weigh more than 70 tons. Like all cetaceans, sperm whales are also the beautiful spirits of the ocean, they have the largest brain of the earth's creatures and have a very high IQ, this creature is not common but very friendly to humans, like primates, sperm whales are also highly social animals, generally for 12 or so females to form a group, individual tribes plus the number of cubs can exceed 20. In addition to communicating with each other with a clicking sound, their social means will also rub the skin of several whales together, which is very conducive to the exchange of feelings between groups and can remove the dead skin on the body, similar to humans bathing each other.
Female sperm whales reach sexual maturity at age 9, while males must be legally 18 years old to engage in gender activities, and male baby whales leave the group between the ages of 4 and 21 to live alone, and he does not come to help until the breeding season or when the group is in danger. Sperm whales generally have a lifespan of about 70 years similar to humans, but females are more like ascetics than humans, and they do private activities with males every 4-20 years.
Since the sperm whale spends most of its time in the deep sea, people know a lot about it. Sperm whales are very intelligent and enthusiastic animals, and when there are females in the group giving birth, the rest of the females will surround the city to protect the birthers, not only that, they will also provide shelter for dolphins killed by killer whales, but small-scale killer whale colonies will generally stay away from sperm whale colonies. Sperm whales are one of the few animals on Earth that exhibit altruistic behavior, and footage has documented sperm whale colonies hosting a congenitally deformed dolphin that left a member to watch over the dolphin and bring it back food from the deep sea when diving. Despite their intelligence and love, sperm whales cannot be fearless in the ocean, their natural enemies are the top predators in the ocean, orcas, and pilot whales and pseudo-killer whales have also been recorded in attacking and harassing killer whales.
Killer whales have been recorded at a maximum of 9 meters and it is entirely possible to hunt sub-adult sperm whales. However, they are more likely to prey on juvenile sperm whales, and when threatened by killer whales, adult sperm whales will pose a daisy array to protect the cubs, and they will also sound the alarm to ask the male for cover.
Sperm whales are the second deepest marine mammals to dive, and the deepest dive is the Koch's beaked whale, which is able to dive 3,000 meters.
Koch's beaked whale
Sperm whales can dive for about 2,000 meters and dive for about 90 minutes, but they need to be fully prepared before diving, and they have almost no way to rush down when encountering killer whales, even if they have the intention to dive killer whales, they will dispatch troops to stop them. In short, for the most part they can only choose to be tough with killer whales. Although there is a huge difference in the size of individuals compared to killer whales and adult sperm whales, there are oversized killer whales that can reach about 30 members, and killer whales are the most perfect warriors in the ocean, they combine strength and speed with wisdom, and the status of ocean overlord is well deserved. Killer whales generally attack groups of sperm whales with cubs, and when attacked, nearby male sperm whales will also come to the rescue, whether he is the biological father of the child or not, the male whale will help the population get through the difficulties, if the number of killer whales is small, the male sperm whale can be successfully stopped, but if the killer whale is too numerous, the male whale will not be able to stop the giant panda's killing.
In 1997, 130 kilometers from California, there were records of 35 killer whales besieging 9 sperm whales, this hunt was initiated by the female killer whale group and then the male whale came to support, whenever the killer whale managed to separate a sperm whale from the daisy array, two adult sperm whales would try to stop it, although the sperm whale group was very hard but finally the largest female sperm whale was killed, and the rest escaped with serious injuries It is said that several of them will die of serious injuries. Adult male sperm whales are much safer, and there are no records of killer whales killing male sperm whales so far. However, killer whales can also harass male sperm whales, and once a male sperm whale brought back a large squid from the deep sea, but was snatched away by 6 killer whales when he was about to enjoy it on the surface of the sea. Sperm whales with excessive physical exertion are also helpless in the face of this situation.
Sperm whales have many fats in their brains called cetacean, and they can rely on these waxy substances to control their bodies, by swallowing seawater and melting or coagulating the blood circulation or coagulating the blubber.
Sperm whale brain
A sperm whale can hold 1900 liters of blubber on its head, and the male is larger, so the amount of blubber in the body is higher than that of the female. In the 18th century, sperm whales were once hunted in large numbers, and their blubber was made into fuel oil and cosmetics, or made into candles that burned longer. We can't judge good and evil because this history has happened, and these creatures have consciously or unconsciously promoted the Industrial Revolution, but because the number of sperm whales killed by humans has dropped from 1.1 million to an estimated 36,000, fortunately, people have stopped killing them since 1980, and now the number of these deep-sea behemoths has rebounded. Even for a long time they have forgotten the crimes that humans have committed against them, and now they, like other highly intelligent cetaceans, have returned to their trust in human beings. The blue ocean allows many beings, including humans, to maintain biodiversity so that we can sail farther in the long river of time.