US government proposes introducing more wolves to Isle Royale as population dwindles.

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Researchers question science behind controversial effort to examine cattle's role in controlling bushfires.

Climate change means that national parks of the future won't look like the parks of the past. So what should they look like?

Gretchen Daily knows the value of ecosystems

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A small group of ecologists is looking beyond the pristine to study the scrubby, feral and untended. Emma Marris learns to appreciate 'novel ecosystems'.

While conservation biologists debate whether to move organisms threatened by the warming climate, one forester in British Columbia is already doing it.

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As many amphibians face the very real threat of being completely wiped out by disease, climate change and pollution, Emma Marris looks at a controversial approach to save some of them in glass boxes.