Friday 21 August 2015

Myths and truth about the animals

Sometimes it is difficult to distinguish truth from fiction, especially when it comes to animals. Their behavior sometimes seems shrouded in mystery, so it is not surprising that some objects are fictions. Here before you are 10 myths, and, having become acquainted with them, you will know what is true and what is fiction.

10. Elephants do not forget.
Most likely the basis for this assertion is the fact that the elephant has the biggest brain of all mammals. Accordingly, the greater the mass of the brain is, the better is the memory. Elephants are able to store a map of the entire territory in which they live, and this is an area of about 100 square kilometers. Elephants roam in herds, and when the group becomes too large, the eldest daughter of the leader goes along with part of the herd, but she never forgets her relatives. One researcher witnessed a mother and daughter know each other even after 23 years of separation. Conclusion: this statement is the truth.

9. Crocodiles - crybabies.
"Crocodile tears" - this expression has been used for centuries by different peoples and means fake tears, feigned regret. Indeed, when a crocodile kills prey, tears from his eyes shed. Why is this happening? Crocodiles can not chew, they tear the victim to pieces and swallow them whole. By coincidence, the tear glands are located just next to the throat, and the process of power literally squeezes the tears from the eyes of a crocodile. Conclusion: this statement is the truth.

8. In March hares crazy.
The expression "mad as a March hare," perhaps not everyone is familiar with. It appeared in England in the 15th century. The word "crazy" can be applied to behavior that is generally after a quiet and relaxing suddenly becomes strange, violent, harsh. That is beginning to behave hares during the breeding season (which in Europe is usually in March). At the beginning of the season, yet do not want to mate with females often use front paws to throw too pushy males. In the old days, such behavior is mistaken for males fight for the affections of females. Conclusion: this assertion is true.

7. Marmots are predicting the arrival of spring.
The marmot - is the only mammal, which is named in honor of the traditional American holiday, which in on February 2. According to legend, every year on this day the groundhog wakes from hibernation. According to legend, if the day is cloudy, the groundhog does not see its shadow, and quietly leaves the hole, that means winter will soon end and spring will be early. If the day is sunny, the groundhog sees his shadow, and hides back into the hole, that means there will be six more weeks of winter. Can you believe this forecast? During hibernation, lasting up to 6 months, marmots destroy 1 \ 3 of its weight. Waking up, they react to changes in temperature and light, these two factors affect the forecast. Conclusion: this assertion is true.

6. Bats are blind.
You can often hear the expression "blind as a bat." It appeared as a result of observing how these animals can navigate in total darkness. Thus bats use ultrasonic echolocation, that does not mean they have no vision. They have small and poorly developed eyes nevertheless fully perform their function, besides the mouse have excellent hearing and sense of smell. Conclusion: This statement is false.

5. The old dog does not learn new tricks.
The fact that the age of the dog is far from young does not mean that it will not be able to learn a couple of new tricks. Daily 15-minute sessions over 2 weeks enough to make even the most stubborn dog teams learned to sit, stand, Oporto and everything just wish your soul. And age is not a hindrance. Sayings attributed to the possible people who are slaves to their habits. Conclusion: The statement is false.

4. If you take a chick in your hands, then its parents no longer recognize it.
In fact, the scent of the birds is not well developed. They mainly rely on sight. And in any case, no bird for anything just does not give up its chick. Myth feature inspired by the birds fly away from the nest, and the parents hoping to draw attention to themselves and to lead chicks away from the nest. But even if some chick does not pass, the parents watching the nest from a safe distance, and once the threat has passed, go back to their chicks. Conclusion: The statement is false.

3. camels store water in the hump.
The camel can survive without water for 7 days, but not because he holds a week's supply of water in his hump. They can avoid dehydration that would kill most other animals due to the large number of oval-shaped red blood cells (as opposed to the usual round shape). Blood keeps normal flow even under strong thickening as narrow oval red blood cells pass freely through the capillaries. Furthermore, erythrocytes have ability to accumulate camel liquid thus increasing in volume to 2.5 times. Hump ​​is nothing like a big pile of fat. The fat contained in the humps, not split in the water, as it was thought for a long time, and plays the role of reserve power for the body. It also serves as a heat insulation for camel's body, accumulating primarily on the back, which is most exposed to sunlight. Conclusion: The statement is false.

2. Earwigs live in the ears.
Earwigs is relatively small insects, length of 4-40 mm, with a highly elongated, flattened and very flexible body, bearing at the top of the abdomen two long process - mites. Despite the fact that earwigs prefer to hide in warm, moist places, they are unlikely to choose a safe haven as your ears. Even if some of them try, they can not penetrate deep - the ear canal is blocked by thick bone, and no one will be able to chew it. So where does this creature got its name? The fact is, it folded its wings with remotely similar to the human ear. Conclusion: The statement is false.

1. lemmings commit mass suicide.
The myth of lemmings occupies the first line in our list, because there are already 5 centuries At the beginning of the 16th century, a geographer suggested that they fall from the sky in a storm. Many now believe that during the migration of animals they commit group suicide, but in fact it is not so dramatic. Every three or four years, the population is on the verge of extinction due to lack of food, and animals commit mass migration. At the same time they have to jump off the rocks into the water and swim long distances, causing exhaustion and can lead to death. Myth was also confirmed in the Oscar wining documentary in 1958, where the scene of a mass suicide of lemmings was completely staged and was filmed in the wild. Later that scene was cut. Conclusion: The statement is false.

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