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Image of the Day
First Bumblebee Species Declared Endangered in U.S.
Kerry Grens | Jan 11, 2017
The federal government concludes the rusty patched bumblebee is nearing extinction.
One-Third of Cactus Species Threatened
Karen Zusi | Oct 6, 2015
A global assessment of declining cacti populations places responsibility on increasing human activities.
Global Tree Count Updated
Karen Zusi | Sep 3, 2015
Latest study puts the total number of trees on Earth at 3 trillion, well above previous estimates.
Butterflies in Peril
Bob Grant | Aug 12, 2015
Several recent studies point to serious—and mysterious—declines in butterfly numbers across the globe.
Pick your frog poison
Jessica P. Johnson | May 31, 2011
Human development may destroy natural habitats, but it could also provide amphibians with a safe haven from deadly fungal infections.