Earth
First Americans must have arrived by sea, not via Alaska
A study of prehistoric DNA has challenged the established theory that says people first reached the Americas via a land bridge in the Arctic
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Environment
Genius crow’s tool-bending behaviour may be natural to its kind
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Environment
Dog sperm quality decline is blamed on pet food chemicals
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Earth
More than 60 per cent of coral reef in Maldives hit by bleaching
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Earth
Record-breaking year shows Earth鈥檚 climate is in real trouble
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Earth
Large carnivores under threat as prey they depend on decline
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Earth
First diagnosis of dinosaur arthritis shows it lived in pain
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Earth
California鈥檚 wildfires blaze on as communities evacuate
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Earth
Ocean-cleaning sea bins will gobble up plastic waste to recycle
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Environment
Deep-sea ecosystems still under threat despite UN protection
Some of the world's most hidden but precious places are still not being adequately protected from fishing trawlers, despite 10 years of UN resolutions to protect them
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Environment
New Zealand to wipe out all rats as part of alien eradication
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Earth
One part of Antarctica has been cooling since 1998 鈥� here鈥檚 why
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Earth
Fossils, islands and forests added to UNESCO World Heritage List
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Earth
Saving the ozone layer is warming the planet but it can be fixed
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