Human beings have existed for 300,000 years and have managed to live in many unstable environments. We've survived ice ages, devastating pandemics and world wars. But how would we fare even further ...

Neither plant, nor animal, nor fungus: science finally discovers what these 8-metre giants were - ...

Our distant relative figured out how to survive in a dramatically different environment, can you? By the end of the Devonian Period, the land had exploded with plant life and ancient invertebrates.