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 17 Frozen Reservoirs That Look Like Fine Art

17 Frozen Reservoirs That Look Like Fine Art

Every year, when the temperature drops below zero, most rivers, ponds, lakes and even some oceans are covered with a thick layer of impenetrable ice, forming on their surface either snow patterns or masterpieces of fine art. Such beauty cannot be described in words, so we have prepared for you this selection of 17 photos so that you can fully enjoy these icy views and anticipate the coming frosts ...
AUTO What Does Your Car Say About?

What Does Your Car Say About?

Probably with every motorist once in a life there was a situation when the car crashed. Of course, the best solution is an immediate visit to the workshop. But sometimes you just need to listen to what your car says and it is likely that this will help to solve a problem that has suddenly arisen ...
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 ...
ANIMALS Interesting Facts About Ants

Interesting Facts About Ants

We are used to consider ants an icon of hard work and strength. These small insects were able to create their own hierarchy and build entire cities underground. This collection will tell you about interesting facts that you might not have known about ants ...