National Geographic

Ad-Dair is a Nabataean rock temple of the 1st century AD. e., preserved near the city of Petra. It is a monumental building carved entirely from the rock. It measures 50 meters wide and about 45 meters high. National Geo…

Enthusiast trained a rat to play DOOM He simply gave the rat a treat through the tube for each successful action, as a result of which the rat learned to go through a simple maze on the game engine. National Geographic

Different ways of performing multiplication among Chinese and Japanese students. National Geographic

Hedgehogs are very jealous in their own territory, which has clear dimensions. The land area of ​​male hedgehogs ranges from 7 to 39 ha, and for females, from 6 to 10 ha. National Geographic

Watch with sound. National Geographic

Murmuration of starlings Murmuration is a phenomenon of coordinated flight of huge flocks of birds (starlings, jackdaws, crows, etc.) that form dynamic three-dimensional figures of variable density. National Geographic