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Planet Earth Online

Wandering females give stags the slip

The fierce battle of rutting stags is a famous symbol of male animals competing over females. But it turns out the stags don't have things all their own way.

Deforestation makes rainforests drier

Deforestation in West Africa can reduce rainfall over the rest of the forest by around half, according to new research.

Teenage tyrannosaurs grew double-quick

Teenage tyrannosaurs was even bigger and heavier than was thought, new research shows. And juveniles must have grown twice as quickly as previously thought.

Crickets’ gentlemanly side shows in surveillance

Male crickets don't bully and harass their female companions, but stick around and put their own lives on the line to protect them from predators.

Green roofs: Are they green?

Green roofs might be able to compensate for urban habitat lost at ground level, but there isn't much information of how well they match ground-based habitats.

Bats only roost with their closest buddies

Researchers have discovered bats prefer to rest with their closest pals rather than with bats they don't know very well.

Fish farms less harmful than thought, says study

Coastal fish farms seem to do less harm to nearby plants and animals than previously believed, a new study reveals.

Scientists say the deep sea needs better management

The deep sea is in trouble. A recent study has found that it's being damaged by human activities, and that this is only likely to get worse.

Domestication robbed stallions of genetic variation

Modern stallions almost certainly lost the genetic diversity their ancient ancestors once had after domestication, a new study revealed.

Ancient farming damaged landscape in Peru

A study of food remains from Peruvian settlements shows ancient farming undermined the natural vegetation so badly that much of the area had to be abandoned.