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!

How Different Animals See the World

Everyone probably has long known that animals see this world differently from humans. Some may even know what exactly is changing in the visual perception of a snake, cow or turtle. But sometimes knowing in words is sometimes not enough, so we offer you to see everything with your own eyes!

The Most Popular Cats on the Internet

You probably met photos of these cats and kitties in different social networks. Their appearance and entrepreneurial owners made them real stars. Here you will see the top 14 most popular cats on the Internet. Go!

A Huge Stone Ball in the Middle of the Forest

The mountainous country of Bosnia and Herzegovina is shrouded in a considerable number of various miracles. These mysterious stone balls are just one of them. Most of these "balls" in the city of Zavidovichi. It was there, in the town of Podubravle that this huge ball of regular round shape was found, the study of which to this day is closely engaged by archaeologists and scientists ...

Unconventional City Cars

The time of large cars with powerful engines on the streets of the city begins to give way to a new era of compact and economical cars. Here you can find the top ten most interesting cars of our time.