7 Most Dangerous Jellyfish in the Underwater World

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Portuguese boat (Physalia physalis)

The second name for jellyfish is physalia. Although this is rather not even a jellyfish, but a whole colony of polypoid and medusoid individuals. The «bite» of a Portuguese boat is extremely dangerous and painful (sensations are compared to hitting the skin with a whip). The main risk is the systemic effects of the poison. In severe cases, intense pain is followed by fever, shock, and impaired heart and lung function, which can lead to death. Physalias are accustomed to moving in groups of up to 100 colonies, and sometimes in resorts they have to close entire beaches because of them!

ANIMALS How Different Animals See the World

How Different Animals See the World

Everyone probably has long known that animals see this world differently from humans. Some may even know what exactly is changing in the visual perception of a snake, cow or turtle. But sometimes knowing in words is sometimes not enough, so we offer you to see everything with your own eyes!
INTERESTING The most delicious borscht recipe

The most delicious borscht recipe

Borsch is by far the most authentic Ukrainian food. Red borsch with vegetables on beef broth, and with lard - it is not only tasty, but also healthy! Each Ukrainian mistress has her own, undeniably the best, recipe for rich borsch. The recipe published here can be taken as the basis for the preparation of this first dish and further supplemented with ingredients to taste and desire.