The establishment of Stalin’s dictatorial regime and its consequences.
A species of monkeys with complex social structure where hierarchical system can be clearly observed.
Air transport has become the fastest and most reliable way of travelling. Thanks to air transport, the pace of globalisation has accelerated significantly.
Air transport has become the fastest, most reliable and most popular form of travel.
The European pond turtle can be found in swamp areas and on banks of shallow lakes.
What secrets does the Moon have? Who were the first men on the Moon? You’ll find out everything from this video.
This plant that originates from China has become an invasive species.
Magnolia is one of the most ancient plant species. Having evolved before bees appeared, its flowers developed to encourage pollination by beetles.
Watch this video to find out whether tap water and table salt are able to conduct electricity.
When masses of cold and warm air meet, weather fronts develop.
The four outer planets (Jupiter, Saturn, Uranus and Neptune) do not have solid surfaces, thus they are called gas giants.
When the temperature of the cooling air reaches dew point condensation occurs because air is unable to hold more water.
Mercury, Venus, Earth and Mars may have they formed in much the same way, but only the Earth is lucky enough to be in the habitable zone.
A fearsome predator of snowy mountains. Of all the felids the snow leopard jumps the furthest.
Thanks to its high nutritional value, the clover is an excellent fodder plant; four-leaved clovers are a real rarity and are thought to bring luck.
Developed nearly 500 years ago, it is a variant of the Julian calendar. Today it is the most widely used calendar.
Curious little animal living in underground burrows in the African savannahs.
The striped horse of the savannahs that pedestrian crossings were named after.
This owl species living in the furthest northern regions of our planet has adapted brilliantly to the harsh conditions of the taiga and the tundra.
Predators on top of the food chain prey on other animals. Their relationship is hunter and hunted.