Удивительные качества пчел
Почему пчелы строят именно шестиугольные соты?
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![СПАСО-КАМЕННЫЙ МОНАСТЫРЬ. Как становятся монахами? Удивительная история возрождения [720p]](https://sun9-13.userapi.com/l7uesFHxaTZFmJqSbyyL6rr17evExY1x6Vu5iA/NjGw8gL2_rQ.jpg)
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![Стрихнин: Крысиный яд как лекарство - [История Медицины]](https://sun9-54.userapi.com/3u05m8CCJsGRGlaozh-qOvmpwVqr2mknqvyzkw/kau7Wv5w-cw.jpg)
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