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human evolution

Two researchers holding up one of the pieces of rock in question. It has a wavy line on it that represents the putative fossil

Life

Ancient rock formations could be oldest fossils on the planet

Rocks in Greenland that have been preserved for 3.7 billion years show evidence of microbes living in a shallow sea on early Earth

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Metaphysics special: Can we ever know if God exists?

Humans

Metaphysics special: Can we ever know if God exists?

Features

Metaphysics 5

Earth

Metaphysics special: Where do good and evil come from?

Features

evolution artwork

Life

Darwin and DNA: How genetics spurred the evolution of a theory

Features

two zebra finches

Life

Birds sing to their unborn chicks to warn them about hot weather

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Zoltan Istvan, head and shoulders, pictured in black and white with clouds in the background. He's white, square-jawed and arrogant-looking

Humans

Meet the US presidential candidate campaigning for immortality

Comment

Cherry or rhubarb? Orangutan mixes tasty cocktails in its mind

Life

Cherry or rhubarb? Orangutan mixes tasty cocktails in its mind

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children with Downs

Health

Parents giving unproven IQ-boosting drugs to kids with Down's

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First Americans must have arrived by sea, not via Alaska

Earth

First Americans must have arrived by sea, not via Alaska

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A clump of yeast cells

Life

Simple lab life makes an evolutionary leap in a few generations

It only takes a few generations for snowflake lab yeasts to adopt distinct lifestyles – a great leap forward in early evolution of life

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Earth

Some of the earliest plants took root by growing up, not down

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Humans

We need a new secular approach to dignity

Leader

Health

Why we're funny about facts and prefer emotions

Culture

Life

Cactus bugs compensate for lack of weapons with bigger balls

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