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 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!
ANIMALS The Best Cat Cafe in the Whole World

The Best Cat Cafe in the Whole World

Cat cafe is an unusual place where you can enjoy a cup of delicious latte with warm feline purring. Such places are a great place for relaxation. Of course, provided that you are not allergic ...
ANIMALS 10 Interesting Facts About Hedgehogs

10 Interesting Facts About Hedgehogs

For many people, hedgehogs are associated with cute prickly animals that drag apples and mushrooms on their backs into a hole. In fact, the hedgehog is a predator that eats everything that it can find. And this is far from always mushrooms and berries ...