Several truths about aliens, we were wrong before! Aliens this thing must be very curious, then the aliens in the end is how? Are they the monsters we see in our movies? Recently, scientists have made a study of aliens, so we guess the aliens before all guessed wrong, in the end is how it happened? Let Xiaobian take you look at it.
Aliens don't eat human beings? Horror science fiction movie aliens will devour human beings, but from the angle of science is not possible, the space travel wisdom of biological civilization has gone beyond the prey animal stage. In addition, the digestive system has not be able to digest the alien earth biological protein.
With language and text. The extension and development of a civilization must need communication and written records, for the aliens, they reach earth like human civilization, culture and language needs the corresponding text, the cultural heritage of different periods.
Non human body characteristics. In some science fiction movies, mysterious aliens have similar human face features, in fact they and the earth in a completely different environment. Humans evolved to adapt to arboreal apes, primitive apes of the limbs suitable for climbing trees, if a planet without trees, the corresponding wisdom of life without evolution imaging human limb structure.
Aliens are not giant bugs. Mysterious giant alien insects appeared in science fiction movies cannot be explained from a scientific point of view, this concept originated in the human fear of losing in the earth's dominance, and aversion to insects, the oxygen content in the earth's atmosphere based on insect growth cannot become the huge monster.
Super iq. In some science fiction movies, extraterrestrial civilizations are described as social groups under the feudal system, they dispute for the territory. This is not true, they can achieve interplanetary travel, you need to have a very high IQ ability, they will war arrows pointing to interstellar space.
Viral and bacterial immunity. The intelligent extraterrestrial exploration program (SETI) senior engineer Seth - Shostak pointed out that bacteria lives only in related biological and chemical properties of life forms, human evolution to survive the unique human DNA, so living in the environment completely different alien creatures, they are not infected with viruses and bacteria on earth.