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!

INTERESTING What are these products made of? You will not believe!

What are these products made of? You will not believe!

At first glance, all these products are quite edible and appetizing and look so realistic that immediately there is a desire to sweep them off the plates without a trace. In fact, all this food is the work of the talented Japanese sculptor Seiji Kawasaki, who makes identical-looking food products from ... wood!
INTERESTING Funny Shots Directly From the Football Field: 30 Photos

Funny Shots Directly From the Football Field: 30 Photos

Football is perhaps the most popular game in the whole world. Millions of men are ready to spend a lot of time watching matches of their favorite teams, and what can we say about days, weeks, and sometimes months of waiting for decisive games and world championships! Of course, football could not do without curious cases. Photographers are always ready to please the fans with interesting shots right from the scene, thanks to which any, even the most intense and responsible match, begins to seem like a fun childish naughtiness of adult uncles. A few shots from this category we will share today with you ...