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!

Lamborghini Designed with a 3D Printer

Here is the creation of master Sterling Backus, who, together with his son, dared to recreate a model of the popular sports car Lamborghini Aventador. See what they did!

10 Most Intelligent Animals

It is generally accepted that man is the most developed mentally. However, do not underestimate the intelligence of some animals. This selection can show that animals could well become an obedient person for mental development ...

25 People Who Didn’t Caught a Break

Everyone had such moments of life when it seemed as if the whole world was opposed to one person. But, despite a string of failures, you should never lower your head down and be upset, because after a black stripe you should always have a white one! These photos are about people who know firsthand what a "bad day" is and how they deal with it.