Can this form of geo-engineering ever be made cost-effective?
Circumstantial evidence suggests gaming can be as addictive as gambling.
Sharks - along with whales, dolphins and seals - are colour-blind, according to new research.
The Tasmanian devil, a cat-sized animal, is being pushed to extinction by lethal tumours passed on in fights over food or sex.
A eureka moment led to Wei Shen and his Monash colleagues coming up with a blood test the size of a Post-it note and with the texture of a paper towel.
The testing currently on offer is invasive and expensive, and scientists around the world are looking for a cheaper and easier method.
Who killed the diprotodon? Clues point to the first humans.