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Monarch butterflies' marvel of nature under threat from all sides

08.02.2020
Příroda
The orange and black insect makes an astonishing 3,000-mile annual migration but the recent deaths of two conservationists in Mexico have highlighted the dangers facing the speciesThe annual migration of monarch butterflies from the US and Canada is one of the most resplendent sights in the natural world - a rippling orange and black wave containing millions of butterflies fluttering instinctively southward to escape the winter cold.The spectacle when they reach their destination in central Mexico is perhaps even more astonishing. Patches of alpine forest turn from green to orange as the monarchs roost in the fir trees, the sheer weight of butterflies causing branches to sag to the point of snapping. Tens of thousands of the insects bounce haphazardly overhead, searching replenishment from nearby plants. Continue reading...
Zdroj: The Guardian

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