A disastrous chain of events nearly wiped out California's diminutive island fox. Scientists hope it's not too late to undo the damage
When biologists study food theft among endangered roseate terns, they find that crime most definitely pays
Once thought to have vanished from North America victims of hunting and habitat loss the cats maintain a slender pawhold in the thickets of South Texas
Their habitat is disappearing fast, but San Joaquin kit foxes are finding ways to survive
They're not animals and they're not plants, and biologists want to know a lot more about them.
Aliens are tunneling through North America. Who'd have thought these earth tillers have a downside?
A real fish tale hangs on a monster marlin caught nearly a half-century ago
For the National Zoological Park, an artist depicts the diversity of the islands' extinct avian species
Still used as "dancing bears," they can hold their own with the big cats but not with human expansion
An American biologist treks the steppes and the Gobi to rescue a Mongolian raptor that's in deep trouble
Winging south, Operation Migration embarks on a remarkable odyssey
The evolution of this freshwater pearl-maker reaches its apex in our Southeastern rivers
Working alone, by hand, one man is turning 100 acres of alien trees into a refuge for Hawaii's endangered botanical treasures
The story behind the Smithsonian's display tiger leads back into tiger history, man-eating and otherwise, and back to the fact that tigers are endangered
How a snake, attended by alarums and excursions, made it from an Asian jungle to the National Zoo and so to its present berth in a Smithsonian museum
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