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Stone quartz - a good mascot

Camel Spider: scary, but not poisonous

Are wild African tribes descended from the top steelmakers in the world?

Where does the hamster?

Gulf Stream stops.

Why urban swallow became so rare to meet us?

White Nights: Magic Studies' Venice of the North "

The biggest fish of the rivers and oceans

As an ordinary cow parsnip from edible plants was "Stalin's revenge"?

Medicinal plants - prickly thistle

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Sodium hydroxide, its physical and chemical properties:
Mirror symmetry and a sense of beauty
Complex numbers.