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Earth

Return of the king butterfly

North America's monarch butterfly has bounced back after its worst year ever 鈥� but it is still the fourth worst year since records began in 1993

Earth

Satellites could keep an eye out for floods

Environment

Fish brain gives birth to new cells in breeding season

Environment

Clearing up space junk, one piece at a time

Environment

How memory power helps bird brains survive the winter

Earth

Polluted perfume could put pollinators off the scent

Environment

Bees follow polarised light through a maze

Environment

Vikings’ crystal clear method of navigation

Environment

Did modern humans go global twice as early as thought?

Earth

Tiny orang-utan populations are surprisingly diverse

One of the most detailed analyses yet of the two species of orang-utan reveals surprising genetic diversity 鈥� good news for conservation efforts

Earth

City fish take in antidepressants

Earth

The selfish metaphor: Conceits of evolution

Environment

Lost islands of the crows revealed in DNA study

Earth

How the seahorse gained its shapely body