Attractive males release fewer sperm per mating to maximise their chances of producing offspring across a range of females, according to a new paper on the evolution of ejaculation strategies. The findings by researchers at UCL (University College London) and the University of Oxford suggest that, paradoxically, matings with attractive males may be less fertile than those with unattractive ones.

Wolfgang Bengel, the technical director at German biomass company BMP Biomasse Projekt, saw a business opportunity in solving the breweries' grain waste headache. He reasoned that the leftover grain could be used to create steam and biogas, which would provide energy for the breweries, cheapening their energy costs as well as their costs of transporting grain to farms.

Emory researchers are tapping the latest-generation DNA sequencing technology to become the first explorers of the genomics of agricultural ant societies.

The bottom-line message from a decades-long study of monkeys on a restricted diet is simple: Consuming fewer calories leads to a longer, healthier life.