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Environment

Polar bear penis bone may be weakened by pollution

The baculum, a bone in the penis of polar bears, is losing density in areas where pollutant contamination is high – and that may spoil the bears' sex life

News

Sperm whale's emergency evacuation... of its bowels

Life

Sperm whale's emergency evacuation... of its bowels

Regulars

Mice evolve better, not bigger, balls in sperm race

Life

Mice evolve better, not bigger, balls in sperm race

News

60 Seconds

News

Shoes vs barefoot: The myth of the normal foot

Health

Shoes vs barefoot: The myth of the normal foot

Features

This baby coral will grow up to patch ailing reefs

Life

This baby coral will grow up to patch ailing reefs

Regulars

Adapt first, mutate later: Is evolution out of order?

Life

Adapt first, mutate later: Is evolution out of order?

Features

How fudged embryo illustrations led to drawn-out lies

Life

How fudged embryo illustrations led to drawn-out lies

CultureLab

Brain signature of emotion-linked pain is uncovered

Health

Brain signature of emotion-linked pain is uncovered

News

Lizard penises evolve super-fast

Life

Lizard penises evolve super-fast

They say size matters, but what of speed? In some lizards, penises have been evolving incredibly quickly – up to six times faster than other traits

News

Life

Whaleworld: Looking for cetacean culture

CultureLab

Earth

Climate change may halve giant panda's habitat by 2070

News

Earth

Save the monarch butterfly from extinction

News

Life

Deep bacteria may evolve even without passing genes on

News