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Discover the latest science and technology news from around the world with New Scientist. Read exclusive articles and expert analysis on the newest developments in space, physics, health, technology, the environment and more.

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Upheavals to the oral microbiome in pregnancy may be behind tooth loss

Dental problems often arise or get worse during pregnancy, and a new study hints that rapid changes to the oral microbiome at this time could be at least partly to blame

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Environment

Africa’s forests are now emitting more CO2 than they absorb

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Chemistry

Plastic can be programmed to have a lifespan of days, months or years

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Space

Supermassive dark matter stars may be lurking in the early universe

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Life

Origin story of domestic cats rewritten by genetic analysis

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Physics

Physicists have worked out a universal law for how objects shatter

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Environment

Emergency response needed to prevent climate breakdown, warn experts

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Humans

Warming and droughts led to collapse of the Indus Valley Civilisation

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Life

Deadly fungus makes sick frogs jump far, possibly to find mates

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Monthly injection could replace daily steroid pills for severe asthma

Daily steroid pills are often necessary for severe cases of asthma, but they raise the risk of several serious conditions. Now, scientists have shown that a monthly antibody injection can eliminate the need for the pills

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Humans

Easter Island statues may have been built by small independent groups

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Exceptionally rare pink grasshopper spotted in New Zealand

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Life

Pandas use tools to scratch thanks to a strange evolutionary quirk

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Humans

Ancient human foot bones shed light on how two species coexisted

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