Environment
Pentagon, Empire State Building and Buckingham Palace built with mineralised microbes that coexisted with dinosaurs
This drought-stricken city may run out of water soon! Day Zero not far away
'That good old Global Warming' is getting serious: 2017 among warmest years since 1880, even without El Niño
From Mayan artefacts, graves to extinct fauna, here's what world's largest underwater cave holds [Video]
Is deadly Mount Etna not a real volcano? Study suggests it's just 'a giant hot spring'
Saving the merry tunes for posterity
World's biggest air purifier: Over 100-metre high tower is fighting China's air pollution
Octopus camouflage: Rare footage shows how it changes its colour to protect itself from predators [Video]
18 new species of assassin pelican spiders, known as 'living fossils', discovered in Madagascar
Dramatic rescues from California mudslides
Fossilised giant burrowing bat, 3 times the size of today's average bats, discovered in New Zealand
When climate change starts determining sex: Rising temperatures turning 99% of sea turtles female
Dear wine lovers, your favourite drink's taste might change; here's why
Earth's oceans losing breath as 'dead zones' with no oxygen quadrupled in volume in last 50 years
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