Humans
Our ancestors mated with the mystery ‘Denisovan’ people 鈥� twice
The genes of extinct hominins called Denisovans live on in people from China and Papua New Guinea, suggesting two instances of cross-species breeding
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Earth
These searing hot chilli peppers are in danger thanks to snakes
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Health
New shades: The controversial quest to ‘fix’ colour blindness
Features
Environment
Two herbivores gang up and silence a plant’s cries for help
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Environment
Dinobird Archaeopteryx only flew in short bursts like a pheasant
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Health
What are Novichok nerve agents and did Russia do it?
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Environment
Daft male spiders prefer females who are more likely to eat them
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Health
Brain zap can make people re-experience old dreams while awake
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Earth
Leopards that live in cities are protecting people from rabies
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Earth
A deadly predator could save the UK鈥檚 threatened red squirrels
Britain鈥檚 native red squirrels have been retreating for decades in the face of invasive grey squirrels, but predators called pine martens could help save them
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Earth
Drones reveal huge colonies of 1.5 million penguins on islands
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Environment
Fish called 鈥榮arcastic fringehead鈥� has a wider mouth than body
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Earth
A weird underground plant has been rediscovered after 151 years
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Humans
Biggest ever family tree shows when cousins stopped having sex
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