7 Most Dangerous Jellyfish in the Underwater World

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Clinging jellyfish (Gonionemus vertens)

This unique jellyfish has a very characteristic appearance for its name. Under a transparent dome up to 80 mm in diameter. you can see a brown cross and 60 thin tentacles, each of which carries a «bag» with stinging cells. The venom of this jellyfish is fatal after a second burn. After the first person is threatened with numbness of the extremities, lower back pain, difficulty breathing, nausea and thirst for 3 to 4 days.

7 Reasons not to Drink Bottled Water Again

Water in a plastic bottle - it is certainly very convenient. But is it so safe as it might seem at first glance? The price of such a convenience is quite high: from environmental damage to health problems. It is time to consider whether a bottle of water is worth the terrible consequences that it may entail ...