Having a healthy skin colour is more important in determining how attractive a man is to women than how manly they look.
Mars may have been arid for more than 600 million years, making it too hostile for any life to survive on the planet's surface, according to researchers who have been carrying out the painstaking task of analysing individual particles of Martian soil.
Tuberculosis patients may receive treatments in the future according to what version they have of a single ‘Goldilocks' gene, says an international research team from King's College London, Oxford University, Vietnam and the USA.
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