Pandas have done more to raise awareness of biodiversity loss than any other species. But they may not be good at stopping it themselves.

Biologists explain why private zoos like those in "Tiger King" are bad for big cats, what the series got wrong, and what's next for tiger conservation.

Plans to build nearly 15,000 miles of road through tiger habitats in Asia by mid-century will up the risk for the big cat's extinction, researchers warn.

A new study forecasts that thousands of miles of new road construction will cut through tiger habitat across Asia by 2050. Planning can make these projects more tiger-friendly.

Researchers are using a newly developed satellite tag to study previously unknown aspects of tiger shark reproduction. This approach could be used on other difficult-to-study shark species.

A new way to track endangered species uses bits of DNA in things like feces and saliva. "It's CSI meets conservation biology."