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Slideshow

Ecosystem Earth and its endangered animals

These critically endangered animals, part of the Photo Ark project, are just a tiny fraction of the millions of species that share the planet. Human activities are dominating consumption of planetary resources, jeopardizing the functioning of the ecosystem that we call Earth. Science's Special issue: Ecosystem Earth delves into the immense challenges—across a range of disciplines—that must be overcome to maintain a stable and functioning planetary ecosystem.
 

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