We all know viruses mutate. But how does that happen, and what does it mean for how we can treat diseases caused by viruses?

Citizen science involves using large numbers of volunteers to collect data for scientific research. But does it result in usable data?

Could humans be responsible for the extinction of megafauna like giant sloths and mastodons?

In Sumatra, a network of corridors linking endangered populations of orangutans, tigers, and other wildlife is under development.

Wildlife cams have steadily gained popularity among both scientists and casual observers. But viewers aren't always prepared for wildlife unscripted.

41 years after the Endangered Species act, what is its legacy?

While the concept of an arms race might seem uniquely human, it is actually widely documented in the rest of the animal kingdom as well.