10 Amazing Animal Facts

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10 Amazing Animal Facts
10 Amazing Animal Facts
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Livescience.com has published little-known facts about animals discovered by scientists in recent research.

10 Amazing Animal Facts

Myths and legends surround many animals. Even long years of study cannot reveal all the secrets of the animal world. Livescience.com has published little-known facts about animals discovered by scientists in recent research

Crocodiles and stones

The stomach of a crocodile is like a rocky beach. To begin with, the digestive system of these animals digests everything from turtles, fish and birds, to giraffes, buffaloes, lions and even other crocodiles when it comes to turf wars. Reptiles swallow stones that remain in their stomachs for a long time and help grind all this varied food. In addition, there is an assumption that the stones serve as ballast for crocodiles when immersed under water.

Whales and milk

Feeding baby whales is no easy task for their mothers. After 10-12 months of gestation, they are born a third the size of their mothers, blue whale cubs, for example, are born ten meters! The mother squirts milk into the newborn's mouth using the muscles around the mammary gland while the baby holds on tightly to the nipple. The fat content of whale milk is 50%, which is 10 times the fat content of human milk. This is what helps the cub grow very quickly, gaining up to 90 kg daily.

Birds and Navigators

Can we imagine a long trip without constant looking at the map, missed turns and unexpected dead ends? Of course not, because we are not birds! But pigeons can fly thousands of kilometers and land at the right point without the slightest difficulty. The Arctic tern makes a nearly circumnavigation of the world every year, never losing its course. And all because birds have ferromagnets for orientation in the Earth's magnetic fields. By the way, a 2006 study showed that pigeons also remember landscape features to make it easier to find their home.

Beavers and winter

Mole rats and blindness

Because of the small eyes and underground lifestyle of African mole rats, we are used to thinking that these animals are blind. It was assumed that they use their eyes to determine the direction of air currents. But recent studies have shown that mole rats have vision, and quite sharp. Only what the animals see they do not like at all, because in most cases the flow of light in the hole means that a predator has made its way into it.

Chicks and altruism

We mistakenly believe that natural selection excludes all altruism in animals. It exists, especially in relation to individuals with similar genetic material. The chicks inform their brothers that they have found food, thereby helping the entire clan to survive. Thus, natural selection should be viewed as a struggle for survival not of individuals, but of groups of individuals with the same genetic material.

Hermaphrodite fish

With such a huge variety of animals on earth, it's easy to overlook that the most amazing things happen at the bottom of the ocean. For example, that a huge number of fish are hermaphrodites. Some fish change sex in response to changes in the environment or depending on the hormonal cycle. And many fish have signs of both sexes at once.

Giraffe and blood flow

The majestic giraffe, whose head sits on a long support at a height of 5 meters from the body, needs its long neck in order to compete with other animals for food. The benefits of growth here are clear, but not without challenges. A giraffe's heart works twice as hard as a cow's heart to deliver blood to the brain. A complex blood vessel system ensures that blood does not rush to the brain when the animal bows its head, and the skin on the giraffe's legs is tightly taut to prevent blood from pooling in the hooves.

Elephants and memory

Elephants have the largest brain among animals that have ever walked the earth - 5 kg. But do they use their gray matter to the fullest? The level of intelligence is difficult to determine even in humans, to say nothing of animals. But the ratio of body mass and brain mass can be calculated. In elephants, it is 1.88, in humans - 7.33−7.69, in chimpanzees - 2.45, in pigs - 0.27. According to scientists, development keeps pace with memory, so we can say that memory in elephants - very good.

Parrots and linguistics

The speech of parrots is usually judged as meaningless repetition of sounds. But thirty years of research continuously proves that winged talkers do not just imitate. They are able to solve some linguistic tasks at the level of 4-5-year-old children. It turns out that parrots easily master the concepts of “same” and “different”, “more” and “less”, “no”, and also recognize numbers. And the most interesting thing is that they are able to compose new speech turns with memorized words.

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