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Seals only sleep with half their brain when they're out at sea

Life

Seals only sleep with half their brain when they're out at sea

Northern fur seals mostly sleep with half their brain while they’re at sea, but sleep with all their brain while on land – unlike any other animal studied

News

The most elusive whales reveal their secrets in their wakes

Life

The most elusive whales reveal their secrets in their wakes

News

Zambia to kill 2000 hippos because they might spread anthrax

Earth

Zambia to kill 2000 hippos because they might spread anthrax

News

A picture of the experimental setup

Technology

There is only one anti-shark tool for surfers that seems to work

News

In big cities even the fish are always rushing around the place

Life

In big cities even the fish are always rushing around the place

News

Asteroid that killed the dinosaurs caused massive global warming

Earth

Asteroid that killed the dinosaurs caused massive global warming

News

Chimp evolution was shaped by sex with their bonobo relatives

Life

Chimp evolution was shaped by sex with their bonobo relatives

News

Peter Diamonds and Bob Hariri

Life

Frozen placentas could be the ticket to a long and healthy life

Features

We may have got the evolution of our big brains entirely wrong

Humans

We may have got the evolution of our big brains entirely wrong

News

World's most-spoken languages may have arisen in ancient Iran

Humans

World's most-spoken languages may have arisen in ancient Iran

About 3 billion people speak Indo-European languages like English and Hindustani, and it seems the first such tongue was spoken south of the Caucasus mountains

News

Earth

Half of life on Earth has vanished since we arrived on the scene

News

Earth

Chinese giant salamanders may already be virtually extinct

News

Health

Can a repeat of disastrous Ebola epidemic be averted this time?

Analysis

Life

Ape ‘midwives’ spotted helping female bonobos give birth

News