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A human egg cell

Life

We have measured the speed of death and it’s 2 millimetres an hour

Biologists have watched death spread across a living cell for the first time, and discovered that it travels in a steady wave in the same way that wildfires do

News

Michel Siffre in cave

Health

This man spent months alone underground – and it warped his mind

Features

Newly-discovered type of lung cell has central role in cystic fibrosis

Health

Newly-discovered type of lung cell has central role in cystic fibrosis

News

A close-up of the gynandromorph cricket

Life

Rare half-female, half-male cricket leads a complicated life

News

A new shape called the scutoid has been discovered in our cells

Humans

A new shape called the scutoid has been discovered in our cells

News

ocean scene

Life

Biodiversity may prove to be the defining issue of our age

Leader

flowers/bees

Life

Is life on Earth really at risk? The truth about the extinction crisis

Features

heredity montage

Humans

The complex and unfolding story of heredity shows genes’ true place

Culture

Biosphere 2

Life

What happens when you seal eight people in a giant bubble?

Features

plastic bottles in sea

Environment

Thought plastic was bad enough? Here's another reason to worry

We knew marine plastic strangles birds and poisons fish. But it can also pick up some deadly hitch-hikers – with even more profound consequences

Features

Tiny mitochondria may be controlling genes in heart of our cells

News

Environment

Cycling race footage highlights climate change effects on trees

News

Humans

How old could humans get? We probably haven't hit the limit yet

Comment

Life

Four ways dolphins are amazing – and one way they’re not

Features