Amazing creation of our planet
• Amazing creation of our planet
Evolution does not choose the easy way, it checks all possible options, then to stop at an optimum. In the process of being born there, which at first glance violate any existing laws of biology and physics. Scientists have for decades struggling with the weight of a resolution of puzzles, because some of the living organisms simply do not exist, however, there are also thrive. Take a look, for example, here on these incredible in terms of the science of creation - the principles of life of some of them we do not understand until now!
Yes, this seems to be a joke some - thought, perhaps, scientists saw a giraffe for the first time. Creating and really unique - his huge (10 kilograms) of the heart does not even able to raise blood to the head! Giraffe can not tip at all, because this trick can lead to fainting. Only in 2016, biologists discovered the secret of this wonderful animal: the special structure of the ventricles allows blood to rise above and neck vessels are not torn from the plasma tide because it is extremely flexible. The faint giraffe also does not fall, because all the blood is collected in special veins extending along the neck.
Perhaps if someone when and inherit the Earth, it will Tardigrada. They have survived in space, we demonstrated the ability to endure without consequences fatal to the human dose of radiation, heating up to 150 ° C and a pressure of as much as 6,000 atmospheres. The thing is that in these extreme conditions tardigrades hibernate, and the DNA of these creatures has unique proteins that protect the nucleic acid from the radioactive contamination of any level. It looks like someone specially designed for special operations tardigrades in incredibly difficult conditions!
Surprisingly, according to all principles of aerodynamics bumble bee just can not fly. It is in 1934 discovered an entomologist Antoine Magnan. The riddle was solved only a few decades later: it turns out, the special structure of the wing allows the bumblebee to create small swirls of air, lifting the insect up with any movement of the wings.
Did you know that only one jump kangaroo can overcome the whole nine yards? Energy it takes a lot, about ten times more than it receives from pet food - it is impossible! Biologists and managed to resolve this conundrum: special tendons in their hind legs to help the kangaroo to save up to 70% of the energy for the jump. Tail and head movements to help special kangaroo jump for hours and not even very tired.
Tardigrades main rival in the fight for the planet after a nuclear war. Archaea are very similar to the bacteria that's only in contrast to the latter are able to withstand the radiation dose to 30,000 Gy. By the way, is lethal to humans - only 5 Gy. In general, the type T. gammatolerans prefer living in boiling water at 100 ° C! This mystery, scientists can not yet solve and mechanisms to Archean withstand such an overload, still not found.
Hummingbird flies so quickly, because it is able to do 80 strokes per second wings. Energy is produced enormous and feathers have to stop the heat away from the body. Moreover, hummingbirds live in very hot climates - so they should just burn in the air under such conditions. Only in 2016, biologists have managed to understand how these birds survive. It turned out that a number of special zones through which the excess energy is discharged and placed on the body of a hummingbird.