Finds of the week
This photo was made in the Sahara desert, moreover, not so long ago, in 1955. The picture is captured as a group of Bedouins resting in the shadow of a lonely tree. Apparently, a full-fledged oasis wait for a long time. Sugar is the largest roasting desert and the second in general (after the Antarctic) desert on Earth. It is located in the north of Africa and stretched about 4800 km from west to east and 800-1200 km from north to south. The total area of its area is about 8.6 million km². Sugar annually increases by 6-10 km. For the first time, the name of the sugar is mentioned in the first century. NS. It happens from the Arabic ṣaḥrā’, that translated and means "desert", or from the ancient "Sahra" – "Red-brown". Despite the heavy climatic conditions, about 4,000 species of animals live in sugar, with almost half of them – African endemics, that is, there are found only in this territory. And in the desert there are about 2 million people, mostly Berbers and Tuaregi. Previously, "My Planet" placed material about the rules of life of Bedouins.
Mergers and acquisitions
In the animal world survives the strongest! So these two comb, having met underwater, quickly found out who is stronger, and the winner ate the loser. In general, the comb – very curious creatures. Their distinctive feature – "ridges" from the cilia that they enjoy when swimming. The dimensions of these animals range from a few millimeters to 1.5 m (!). Almost all combs – predators, feed not only with unlucky conifers, but also larvae, corporates and small adult crustaceans.
Interestingly, in the view of an overview observer, Grebseviki looks almost like jellyfish. In fact, these are two completely different species that are similar to each other no more than a man on the sea skate. Grebneviki are a real headache for fishermen. For example, collapse of fisheries in the Black Sea in the 1990s are associated with the American Skilnery Mnemiopsis. He was brought there along with the ballast waters of one of the US marine courts. On the day of Mnemiopsis can produce up to 8,000 offspring. Therefore, soon a giant population weighing over 1 billion tons ate the whole local plankton, which served as feed for the Black Sea Hams. To solve the problem, in the sea specially launched another comb, Cannibal Bero, to destroy his relatives.
