Discovery Science 🧬

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Blue Crabs: Cannibal Coast. 97% of their deaths are due to attacks on each other for food Blue crabs look exactly like crabs should look. These are small and inconspicuous workers from the East Coast of the United States who do not attract much attention. And they don’t have any special features. Except for one thing - they literally hate each other and ruthlessly destroy their own species. The first two months of their life are typical for crabs: the larvae frolic in the depths of the ocean and feed on plankton, gradually gaining mass. But sooner or later they have to grow up, and the crabs sink to the bottom, where their main natural enemies are already waiting for them: older blue crabs. From a relatively peaceful and predictable life, little crabs end up in cannibal hell. Any blue crab is ready to eat its younger relative if there is at least some free space in its stomach. Young crabs themselves understand what a dangerous situation they are in. To escape, the baby runs to the shallow coast, where in the thickets of algae and sea grass you can hide from adult cannibals. But it doesn't help much. Dry statistics collected by the Smithsonian Institution show that every year the blue crabs of the Chesapeake Bay (Virginia) destroy 40-45% of their population. Think about it: 97% of all injuries and deaths are caused by larger blue crabs! Moreover, the baby that survives this nightmare will leave the shallow water and begin to oppress the next generation of crabs. The ancient sages were right when they asserted that a slave does not want to be free, he wants to have his own slaves. But this is not the main joke of nature. The fact is that an endless cycle of cannibalism is the only thing keeping the Chesapeake Bay crabs from going extinct. Since several large rivers flow into the bay, the water there is fresher than ocean water, so marine predatory fish try not to linger here. The river ones do not go down into the bay at all. So it turns out that almost no one hunts crabs here. And if not for their tendency to self-destruct, they would have long ago eaten the entire ecosystem, after which they would have died themselves. But, unfortunately or fortunately, this cruel cycle seems to be coming to an end. The more people develop the coastline, the fewer shelters the babies have, and their mortality rate continues to rise, while the overall number of crabs in the bay decreases. Which, in turn, will turn against humans, because blue crabs are a very important commercial species. The only good thing is that there is no need to worry about the species, because it has a wide range, where not everything is so deplorable. In addition, along with the ballast waters of ships, they reached Europe, and now cannibal crabs are found in the Baltic, North, Mediterranean and Black Seas. Author: Yaroslav Ilyin Единственное лицензированное Telegram-казино 🏆 ⭐️ Ежедневные раздачи до $5000 ⭐️Всегда здесь:https://t.me/gam

the babies hatch with a spread of one to two weeks (photo 5). Why? Later chicks are needed as insurance against hungry times. As long as there is enough food, they receive food on an equal basis with their big brothers and sisters. And if hunger strikes, the pragmatic mother feeds the weak chicks to the strong ones. The chicks that survive such a school of life fledge after nine weeks. They immediately begin to learn from their mother the art of killing and the ideology of barn owl superiority, so that six months later they can conquer and oppress other owls on their own... - - - - - We have a huge group, which is 11 years old and there are many zoologists who write tons of text every day from the field in which they are specialists. Due to VK’s failed policy towards authors, all this, unfortunately, rests only on rare advertising and your support. You can support the stability of our nervous system with a minimum subscription of 100 rubles per month. You can request support directly through the button in this post. Thank you! Единственное лицензированное Telegram-казино 🏆 ⭐️ Ежедневные раздачи до $5000 ⭐️Всегда здесь:https://t.me/game_jacknova_bot?start=ceFJNzuX1W5

Barn owl: Cat on bird iron - What do you have? - Barn owl. - Ah-ah-ah, but I thought it was an owl. If you had a barn owl in your hands, this is what a meeting with an ornithologist would look like. After all, these savvy guys know that the barn owl is not an owl! More precisely, it is not a real owl. What is she like then? Fake, or what? No, comrades, she just belongs to a different family. I'll explain now. There are two families in the order of owls: true owls and barn owls. The first includes owls, tawny owls and eagle owls, in a word, the whole honest company. And barn owls are on their own. But they did not separate because barn owls are obsessed with purity of blood and the conquest of owl kingdoms, as was explained in the books and film “Night Watchmen”. And by the will of taxonomists. Still, barn owls differ impressively from owls. It is written right on their faces, or rather, lined with feathers. The snow-white heart-shaped board is the exclusive property of barn owls. This concave “plate” on the face perfectly collects sound and helps to quickly identify a rustling carcass in the foliage. But the main trick of barn owl hearing is hidden from view. While the rest of the planet carefully places their ears exactly opposite each other, these birds stuck them diagonally (photo 2)! This trick allows you to instantly target unwary mice, frogs, lizards, birds - barn owls eat anyone. The main thing is that it fits into the mouth. The bird swallows the victim just like that, without even cutting it up. Fortunately, the stomach copes with such a test - the barn owl spits out the bones and fur back in the form of a pellet (photo 3 - the pellet is spat out, although it is a different owl). This indifference extended to the choice of living space. The barn owl is the most common representative of owls. The feathered species populated all of Europe and North Africa, both Americas and Australia. Barn owls are also not shy about human society: they settle in village barns, haylofts and farms - a great place to enjoy the abundance of mice. But the villagers had never heard the barn owl's hoot. This is because birds prefer to squeal and screech hoarsely. An unpleasant shout in the dark serves a specific purpose - meeting a potential mate. Barn owls approach family responsibilities with all responsibility, choosing a partner once and for all. The acquaintance begins with real pandemonium and bird performances. The male, with squeals and screams, twists somersaults in the air and brings goodies, trying to impress the lady. But there are a couple of creepy secrets in this idyll. The construction of a cozy nest is not happening. Barn owls occupy ready-made dwellings: they master comfortable hollows and nooks in attics. All they use when beautifying their living space is the undigested remains of their prey, those same filth. The chicks stay in a brutal environment for about a month. There can be up to nine eggs in a clutch. But

yed universal popularity. However, Saturn was surprisingly calm about excessive attention. He didn't try to hide, didn't show signs of stress, didn't mock his fellow crocodile inmates, except for occasionally gnawing on concrete. And he hardly even bit the zoo workers. The only case of an attack by Saturn was recorded in 1970, when he was fed by an inexperienced worker who made an unknown to us, but very stupid mistake. And even then the poor fellow escaped with only a severe fright and a slight bite. The alligator did not close its jaws, although it had enough strength to inflict a mortal wound on a person in just one bite. In the mid-1950s, the zoo authorities decided that it was unsuitable for the all-Union famous veteran and adventurer to walk around without a partner. They placed Shipka with him, a young female alligator donated by the United States. Workers hoped that the couple would produce abundant offspring, which could be sent to other zoos in the country. But alas, it didn’t work out. Despite the fact that the couple spent a lot of time together, all the eggs Shipka laid were not fertilized. And a few years later she died of unknown causes, leaving no offspring. What incredibly upset Saturn was that after the death of his beloved, he would refuse food for several months. So after this you say that crocodiles have no feelings! In general, Saturn more than once or twice drove veterinarians to gray hair with his hunger strikes, which he organized at any opportunity. He was starving after moving to a new building after some drunken fool threw a bottle at him, and even just like that, for no apparent reason. Once, in 2010, he didn’t eat at all for a whole year! Saturn lived a long life, full of incredible events and unexpected dangers. However, nothing lasts forever under the sun. On May 22, 2020, Saturn, as usual, lay down to sleep in his favorite place, and then his eyes closed forever. But there is no need to be sad about this, because the alligator lived an incredibly long time - as much as 85 years! Although in the wild Mississippi alligators live no longer than 50 years, mostMost of them die before 30. And he grew to a decent 3.5 meters with a weight of more than 200 kilos, which is very, very decent. Author: Yaroslav Ilyin Единственное лицензированное Telegram-казино 🏆 ⭐️ Ежедневные раздачи до $5000 ⭐️Всегда здесь:https://t.me/game_jacknova_bot?start=ceFJNzuX1W5

Hitler's alligator: survived for 3 years in the ruins of Berlin, ended up in the USSR and gained fame Alligator Saturn is a creature whose life story is not easy to believe. Just imagine: he crossed half the globe, survived the war and bombings, saw Hitler, hid from the authorities for several years in Europe and eventually became the most popular reptile of a huge country. And all this - in the first 10 years of your life! Saturn was born somewhere in the state of Mississippi, as befits a normal Mississippi alligator. In 1936, about a year after his birth, he was caught and sold to the Berlin Zoo along with 30 of his unfortunate brothers and sisters. Within its walls they grew and delighted visitors with their exotic appearance, even when the war began. The Berlin Zoo was hit by an air raid and was almost completely destroyed. 20 out of 30 crocodiles died on the spot. The rest managed to scatter through the streets, where they either died a few hours later or were caught by zoo workers. But they never managed to find Saturn. We still don't know how he survived the next 3 years. It may have warmed itself in the warm sewer waters and fed on carrion and rodents. And in this case, he was incredibly lucky, because a slight minus for Berlin is a deadly norm for reptiles. Or maybe he was sheltered by some compassionate (or eccentric) German, thanks to whom the reptile survived the harsh winters. But even if the last assumption is true, they still diverged paths with the German. After all, in the summer of 1946, the British military discovered an alligator sunbathing on the bank of a river within the city. Unable to deliver Saturn to them, the British turned to the USSR military, and they, in turn, transported the alligator to the Leningrad Zoo. Where he got his nickname - Saturn. Of course, the Germans gave him a completely different nickname, but almost all information about the alligator was destroyed along with the zoo. And the information vacuum was quickly filled with all sorts of rumors, revolving mainly around the personality of Adolf Hitler. Others said that he was his favorite animal, which the Fuhrer often visited. However, these rumors have no relation to reality. Although some of the animals in the zoo were indeed supplied from Hitler's pocket, the crocodiles and alligators were not one of them. And there is not a single evidence that he showed any interest in reptiles. However, we digress. In 1946, Saturn arrived at the Leningrad Zoo and immediately became one of the most popular animals. Crowds of people of different ages constantly gathered around the enclosure with ten-year-old Saturn and two crocodiles: from old people and war veterans to very young children. Why was he so popular? And because television was accessible to few, they didn’t even dream about the Internet, and there wouldn’t have been even a couple of dozen crocodiles in the entire USSR. And the alligator, it seems, was completely alone. So he enjo

there is one less danger in the ocean. But the thought still haunts me: how many ships have gone missing over the past millennia due to whale strikes? Author: Yaroslav Ilyin 🏀 Hit the hoop and get an NFT gift — https://t.me/BasketbolX_bot

Revenge for fishing: How and why do whales sometimes attack ships? Many people know about the existence of the novel "Moby Dick", in which the captain of a ship, driven by the desire to catch a huge albino sperm whale, leads his crew and ship to death. And in this work one can easily read the motive of how obsession destroys the life of the person himself and those who happen to be nearby. But there is also a much more prosaic message: if you go after the sperm whale, it will destroy your ship. In 1820, 30 years before the release of Moby Dick, chilling news spread throughout the world: the whaling ship Essex was destroyed by a sperm whale. The huge beast rammed a ship 27 meters long, broke through the hull and went into the depths, avoiding the attack of harpoons. The ship quickly sank, and the surviving part of the crew found themselves on boats 2,000 kilometers from the nearest known land. Of the entire crew, only 8 people reached civilization. It was this story that inspired Herman Melville to write Moby Dick. But this case was not the only one. In 1840, a sperm whale attacked the Brig Desmond, resulting in the death of two sailors. A year later, an angry and wounded whale smashed the John Dye to pieces and was prowling around the wreckage, looking for people among them. And each time the attack scenario was the same - acceleration and a powerful head blow, breaking through the hull of a wooden ship, as easily as if it were made of paper. For a long time, scientists believed that this behavior of whales was an act of desperation, an attempt to escape from whalers in a suicidal attack. But in 2016, an international team of researchers discovered something interesting: it turns out that the huge fat lens on the whale's forehead not only enhances its voice and echolocation abilities, but also acts as a shock absorber for the rambunctious head that destroys ships. These few cubic meters of fat can absorb up to 45% of the impact energy, and the rest is not enough to give the whale even a slight concussion. Therefore, huge mammals easily rammed ships without receiving any injuries. But the destruction of infuriating human shells is just a pleasant side effect; in fact, they need the ability to ram huge targets for... reproduction! Cat whales are harem animals, in which one successful male gets 10-15 females at once. Of course, the competition for this place is fierce. It is so cruel that sperm whales are forced to literally fight for the right to reproduce, and in such a case they cannot do without a battering ram on their heads. Moreover, we only recently learned about the battles of majestic animals. In 2022, scientists purely by chance managed to film a fight while observing one of the sperm whales. Apparently, they usually fight in the depths, but this time was an exception. Fortunately, the terrible times are long behind us. Now ships have become larger, and it is much more difficult to break through the metal plating, so