Burmese pythons, Cuban tree frogs and hundreds of additional species faced the potential to spread into new territories ...

'To create a native landscape, avoid pesticides and chemicals at all costs,' says Valeria Nyman, garden expert and Chief ...

The efficacy of eyespots in deterring avian predators is more due to their conspicuousness rather than their resemblance to eyes.

National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...