Amazing abilities of animals
Wood frogs can survive freezing. wood frog (Rana sylvatica), inhabiting Alaska, ice-free to the extent that it becomes like a piece of ice. Being in a frozen state, the frog does not breathe, her heart and blood circulation stops, it can not move. However, with the advent of spring frog "thaws" and returns to normal. It is highly unlikely that such a skill could develop spontaneously by coincidence. In order to make the body of the frog again functioning, you need to use very complex genetic program.
Winter about 35-45% of the fluid in the body of the frog freezes. This extracellular ice, mostly found under the skin and between the muscles.With this frog is as hard as a piece of ice! Most of these frogs ledyshek survive the winter in Alaska in holes, at the earth's surface.
With the arrival of spring tree frog ends his truly amazing transformation. Just hours frozen body of a frog revives restore normal breathing, heartbeat, blood circulation, as well as the brain and all functional systems. Frog again can move, jump and mate.
Sea cucumbers may be converted from liquid to solid and vice versa
Sea cucumbers (they are marine capsule, they are also sea cucumbers) are a class of invertebrates such as echinoderms. They are somewhat similar to the big worms - and the sight, and touch. (Have you ever groped a worm? Feel!) In general, it would seem, quite helpless creature.
If the sea cucumber gets into a dangerous situation, he quickly acquires a kind of protection: the surface instantly hardens and becomes like armor. How to tell the biologists, the hardness of the skins provide numerous collagen fibers inside her.
When the cucumber for some reason is frightening, his body produces a special ingredient that makes these very soft tissue temporarily harden, and they (being also provided with the said fibers) are very stringent. The result is a sea cucumber in the shell, and not a flabby weakling.
Some have built-in lights squid
Colossal squid. Not to be confused with the more well known, but smaller giant squid. The colossal squid is the largest invertebrate known to science, it also has some of the largest eyes in the animal kingdom.
Each eye squid reaches a diameter of 30 cm, it can be more than a dish, and the lens of his eyes the size of an orange. These huge eyes allow squid to see in dim light, which is very good for an animal that spends most of his life hunting at a depth of 2000 meters.
It should be noted that until now had only caught a colossal squid - youth, adult same individual can grow to 15 meters in length. These giants eye more. Unlike the giant squid, the colossal squid has stereoscopic vision, and has a great ability to accurately estimate the distance.
Even more surprising feature is that each eye has a built-in "lamp", a body that can produce as much light as you need squid to see its prey in the dark.
Chickens get rid of sperm cock-losers
Chickens choose fathers for their offspring after intercourse. If the cock is not the leader, then the chicken is resisting copulation (probably to beak on the head does not get it), but after ejaculation "pours" of himself to his seed. If you ejaculate too small (and therefore, the male is weak and genetically defective), the seed also goes in the trash.
In the experiment with wild chickens (Gallus gallus domesticus) biologists measured the amount of ejaculate cock. Being measured, and the volume that cock left in the female, and one that the female "poured" out. It turned out that the chickens are selected sperm - they get rid of semen socially low-ranking males. This means that if a cock - not the leader, then the chicken is resisting intercourse (probably to beak on the head does not get it), but after ejaculation "pours" of himself to his seed.
Checking the amounts received and throw out the sperm, the researchers came to the conclusion that the chickens with more intensity, "cast" the seed of the cocks that failed - the "trash" goes to 80% of the ejaculate. Of semen cock-leaders chickens disposed with less effort. Another interesting fact is that the smaller the volume of ejaculate, the more the chicken gets rid of it. It turns out that the amount of seminal fluid is a marker of genetic usefulness cock. "If he has a little sperm, so he is weak, and leave any of it should not breed" - about the chicken should be logic.
"Release of sperm can be an effective mechanism for increasing the chances of successful males leave their offspring" - writes Rebecca Dean's blog, talking about the results of the study, published in the American Naturalist.
Cats purr to heal
First, do not say nothing, "tenacious as a cat" - these flexible creatures great ability to heal and cure. For example, it was noted that if someone gets sick in the cat's pride, the other members of the family lie there to give it energy or pick up bad. Cats perceive their owners as "big cats", so, following their nature, they will also treat us. Scientists at the Institute for the Study of the fauna in North Carolina found that the vibration frequency at which urchat cats, accelerate cell renewal.
The new treatment of various diseases - koshkoterapiya - developed at the London Institute of therapeutic methods of influence. Close this issue eminent engaged after one night in the laboratory, where the staff conducted an experiment late, went to the institute's favorite - the cat in March. As she passed the generator currents of low frequency, suddenly tipped the scales all the sensors. For fun, the researchers decided to measure the electromagnetic field of Martha. Imagine their surprise when it turned out that instead of the current expensive generator, you can safely use a cat, as it is capable of producing a much stronger field.
After that, experts have decided to continue the experiment. At the same time there developed the treatment of chronic inflammatory diseases with low frequency currents. Mindful of the response of the sensor at the cat, the researchers divided the patients into two volunteer groups. One group they continued to be treated with low-frequency currents, and people from the other group were placed on a sore point cat. A month later, the scientists compared the results of the experiment: the patients treated with the help of a cat, all recovered, and in the other group, only half the patients recovered. Why is there a cat currents of low frequency? And how do they affect the human body? Scientists argue that low-frequency currents in the cat produced by its thin and delicate hair. When the animal moves, the hair is rubbing against each other, so there is a strong electric field.
