The whale has a huge body. It is the overlord of the ocean. The biggest whale is the blue whale, and the blue whale is also the largest animal in the world. How big is the heart, one of the most important organs of such a huge animal? Is it really as big as a car?
The blue whale is 33 meters long and weighs 181 tons. Its weight is equivalent to the weight of more than 25 African elephants, or the total weight of 2000-3000 people. Its blood circulation is 8000 kg. Its blood vessels are thick enough to hold a child. Its visceral wall is more than 60 cm thick. The newborn blue whale cubs are heavier than an adult elephant. By the time they are seven months old, they will drink 400 liters of breast milk every day. As such a huge animal, how big is the heart, one of its most important organs, to support its activities?
In 2014, nine blue whales were killed in Newfoundland, Canada, so scientists had the opportunity to decompose the blue whale. At that time, four adult men were sent to take out the heart of the blue whale. The artery of the blue whale can be inserted into a human head, weighing 180 kg, which is heavier than a pig. Its body size is really comparable to a car. It is the largest heart in the world, and it can extract 264 liters per second The size of the blood is 1.5m * 1.2m * 1.2m. It is now preserved in the Royal Ontario Museum in Toronto, Canada.
Because there is a thick layer of fat under the skin of the blue whale, which can be used for soap, shoe polish and so on, the blue whale was killed by a large number of whalers. By the end of World War II, the whale population was close to extinction. In 1960, the number of whales in the world was less than 50. Up to now, the number of blue whales is only 200-453, which is on the verge of extinction. Therefore, we should protect our present existence The biggest animal in the world.