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Earth
Analyze This: Tropical forests have gotten patchier
Although many of the world's forests have gotten less fragmented since 2000, tropical forests have gotten more chopped up, putting animals at risk.
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Although many of the world's forests have gotten less fragmented since 2000, tropical forests have gotten more chopped up, putting animals at risk.
The ‘glacial mélange’ on which they’ve come to rely — a mix of ice, snow and slush — could be a temporary refuge for some polar bears.
Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.
When heat waves and droughts collide, water is precious. Some thirsty plants try to cool off by opening tiny pores — only to lose water even faster.
These foreign organisms hitchhike, spread widely and stir up trouble in native ecosystems.
Restoring the missing species can help undo human-caused problems by aiding forests, slowing climate change and reducing wildfires.
Middle-grade campers team up with ecologists at Denver University to show that streetlights boost the growth of a reviled invasive species.
Pikas endure bone-chilling cold on the Tibetan Plateau by using little energy and fueling up on yak poop.
Snared in sticky webs and subdued by poison, even venomous snakes can become a spider’s soup.
Urchins are important herbivores — but not strict vegetarians. When hungry enough, they may even rip apart their predators for lunch.