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!

INTERESTING 13 Most Terrible And Dangerous Airports in the World

13 Most Terrible And Dangerous Airports in the World

People who are afraid to fly usually reluctantly get on airplanes and travel long distances. Usually their fear is not confirmed by anything and is based on personal beliefs. However, looking at some airports, even the most daring traveler would have thought a hundred times before planning a flight to these countries. We offer you a rating of the most dangerous airports in the world, from which blood runs cold ...
ANIMALS Animals That are More Photogenic Than You

Animals That are More Photogenic Than You

Previously, people did not believe that animals could smile, and believed that their antics were just muscular reflexes. But these photos will prove the opposite to you - animals are not only able to smile, some of them are even more photogenic than people ...
AUTO Accident at a Speed of 20 km/h of the 1930s

Accident at a Speed of 20 km/h of the 1930s

What do you think was the situation on the roads and accident statistics in the 1930s? How was car safety ensured? And how many people died in car accidents in those days and now? Little by little about everything in this photo compilation from places of accidents that occurred about 100 years ago!