It is considered that the necessary conditions for the emergence of life is the presence of light, oxygen and water - at least, most species of living beings on our planet is the case. But the Earth - an amazing place, and life here sometimes there is a completely unimaginable conditions that reassuring: it is possible, someday we'll find life on other planets, where conditions are not favorable. We hope that on this we will be able to tell you in a few years, and now we offer you a selection of the most unusual places on the planet, where he managed to survive and be alive organisms.
1. The asphalt lake
In the Atlantic, there are the island of Trinidad, it is unusual especially the fact that it is the only lake in the world, where instead of water - liquid asphalt. Locals use the lake for their needs: every year there is produced about 100 tons of asphalt, and the lake becomes smaller - the depth of the basin is also unknown. The reasons for the origin of the mysterious natural phenomenon can only guess.
However, the most surprising - not even that. In a completely uninhabitable conditions inhabit tiny bacteria extremophiles: each gram of substance lake lives about 10 million individuals. Note that the temperature of the asphalt - about 50 ° C, water is considered a prerequisite for the emergence of life, there is almost no a meager amount which is still to be found, is produced directly lacustrine inhabitants. Furthermore, the bacteria have to live in an oxygen free atmosphere - instead, they are used for breathing metals and hydrocarbons.
2. Radioactive water
Bacteria species Deinococcus radiodurans can withstand ionizing radiation is about 10,000 Gray (man when receiving five Gray dies). Moreover, these bacteria prefer to live in those places where, in one way or another, the presence of radiation - in natural waters, containing huge amounts of radioactive materials such as radium, radon or uranium. Deinococcus radiodurans survives thanks to the constant copying their DNA to the point, the radiation kills one gene, another similar molecule is already beginning to work, and the creature lives. In fact, one individual can exist almost forever, constantly renewing itself.
Now the researchers are looking for a way to use bacteria useful for human needs: for bacteria, in fact, feed on radioactive waste management, they can be used for bioremediation of radioactive contamination. Moreover, after the nuclear disaster bacteria survive for obvious reasons, so that it could serve as a carrier of information for the remnants of humanity. Incidentally, such an experiment has been performed and was successful: in 2003, scientists have encoded the song in a number of segments of DNA and introduced them to the bacteria - the information was passed exactly a hundred generations of bacteria, and scientists were able to read it.
3. The bottom of the ocean
Deep under water, which can not get no ray of light, too, there is life, with this life is represented not only by bacteria, as in the two previous cases. At the bottom of the ocean inhabited by amoebas and strange deep sea fish - they somehow manage to survive in the incredible pressure and the almost complete absence of oxygen. However, there is a theory that life at great depths are not born, but rather migrated here - some species could not compete and were forced to sink to the bottom in search of a new habitat. However, this does not explain the existence of living organisms, for example, in the Mariana Trench: quite difficult to assume that some kind of looking for a place to live would have gone down "on their own" to such a depth. Back in 1960, two researchers, Jacques Piccard and Don Walsh, were able to see at a depth of more than 10 000 m in the flat, similar to flounder fish, and James Cameron in 2012, the year even managed to bring to the surface of microorganisms from "the abyss Challenger." Note that at great depths was not found a single species, whose age would be less than 200 million years, and scientists believe that since then they have not changed.
Mostly deep-residents - scavengers that feed on organic whole, which falls on the depth of the "top".