7 Most Dangerous Jellyfish in the Underwater World

Photo 5 of 8

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 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 ...
INTERESTING Top Slimming Stimulant Products

Top Slimming Stimulant Products

To lose weight, a sufficient number of all kinds of diets have already been invented. Most of them require tremendous willpower and, oddly enough, a considerable amount of money. But progress does not stand still and today scientists have compiled a list of products that will help get rid of extra pounds in the "background", simply by eating fat-burning foods.
INTERESTING Facts From Behind the Scenes of Popular Films

Facts From Behind the Scenes of Popular Films

Films immerse us in another reality, allowing us to enjoy unique characters, their incredible stories and an amazing world. But have you ever thought about what was happening behind the scenes of popular scenes? How the actors behaved, what they had to endure in preparation for the role and how they interacted with each other ... See all the most interesting facts in this collection!