First ever feeding experiments reveal that solitary bees need to carb-load – and can be picky when it comes to dieting.

Electric vehicles can have more than one source of power, meaning they can be controlled better.

First ever feeding experiments reveal that solitary bees need to carb-load – and can be picky when it comes to dieting.

Fifteen years ago electric power generation was the largest source of US greenhouse gas emissions. Now the power sector is leading the shift to a clean energy economy.

The maiden flight of Mars helicopter was a significant advance in propulsion technology.

It's possible that low oxygen levels in caves produced hallucinations – but that doesn't explain the majority of prehistoric art.

A lack of policy has allowed industrial chicken farms to multiply in certain parts of the UK – with a lack of consideration of the environmental and social impacts.

Stenophylla's black cherries have brightened prospects for a coffee supply that can withstand rising disease, pests and droughts.

Because Brazil's economic prosperity in the last two decades is increasingly linked to the Amazon's good health, restoring the country's economy is a critical first step toward ending deforestation.