Flamingos expend less energy standing on one leg than in a two-legged stance, scientists confirm.
Viable mouse sperm stored in space gives hope for sperm banks on the Moon, a Japanese team says.
Nepalese mountain guides have a physiology that uses oxygen more efficiently than lowlanders.
The White Continent's future is written in ocean sediments
Using genetics to reunite long-lost family members
Why 'rump of Rudolph' may become an Alaskan delicacy
Gathering data with coconuts on the Irrawaddy
Could ants tackle the 'antibiotic apocalypse'?
The tiny pill which gave birth to an economic revolution
Programmes, video and downloads: Solutions to air pollution from across the world
The parallels between Earth and other planets