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oxygen

Oxygen oases saved first animals from asphyxiation

Earth

Oxygen oases saved first animals from asphyxiation

When the first complex animals evolved there was hardly any oxygen for them to breathe, but patches of microbes may have saved the day

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Health

Obese monkeys have more stillbirths

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Earth

Oxygen crash led to Cambrian mass extinction

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Earth

The evolutionary burst that made Earth oxygen-rich

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Divers could breathe deep with liquid-filled lungs

Life

Divers could breathe deep with liquid-filled lungs

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Green machine: Perfecting the plant way to power

Earth

Green machine: Perfecting the plant way to power

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Technology

Lung-style fuel cell needs less bling for more oomph

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Super goby helps salvage ocean dead zone

Earth

Super goby helps salvage ocean dead zone

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Tibetans adapted to high life at record-breaking rate

Life

Tibetans adapted to high life at record-breaking rate

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Technology

Cheap camera used to measure oxygen levels

Off-the-shelf digital cameras can be turned into sensitive oxygen sensors that could find uses in medicine or aviation

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Earth

Green machine: Cars could run on sunlight and CO2

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Technology

Arizona man is first to take artificial heart home

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Health

Maxed out: How high can you go?

Features

Life

Zoologger: The mud creature that lives without oxygen

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