10 Most Dangerous Snakes in the World

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Black Mamba

First of all, it is striking that it is the fastest snake in the world (it can move at speeds up to 20 km / h). In addition, they are unusually cruel and aggressive — in one attack, the Black Mamba can inflict up to 12 bites. Without the administration of serum with an antidote, almost 100% of cases are fatal within 20-30 minutes.

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7 Most Dangerous Jellyfish in the Underwater World

Jellyfish is a unique underwater creature that is 95% water and only 5% solids. We are accustomed to being surprised at the beauty and heterogeneity of the jellyfish's body, but we often forget that behind the eccentric external appearance there is a huge danger in the form of the strongest poisons that can kill a person in a matter of seconds. In today's selection, we will sanctify 7 of the most dangerous, but rather cute jellyfish, which should not be approached even for the sake of a beautiful photo ...