Music by Nine Inch Nails.

The prickly pear cactus - available worldwide - could make clean water for millions. Cheaply, easily, and safely.

New Caledonian crows have demonstrated complex problem-solving skills, combined with the use and construction of tools - rivaling that of primates. Video included.

Dolphin creativity and intelligence demonstrated during wonderful underwater play.

Beautiful collection of new earth and nature photography - including animals, insects, Amazon dolphins, Northern Lights, the Icelandic volcano eruption, and more.

A stunning success story in nature conservation : from ecological disaster to tropical wildlife paradise. While generating sustainable income from ecotourism.

An evolution of the green roof technique, living walls are vertical gardens which function as an aesthetically-pleasing urban ecological oasis, on potentially any wall space - indoors and outdoors (Reuters video)

National Geographic follows a Paraguayan rainforest shaman and explores the critical importance of preserving indigenous medicinal knowledge and endangered plant species.

Love, beauty, and grace.

Beautiful ice crystals, with a myriad of forms demonstrating the inherent sacred geometry of water.