Chikungunya transmitted by mosquito that has already conquered large parts of the world

Study suggests that our ability to understand others makes humans more intelligent than other primates

Finding provides clues to nature of disorder in humans

President hopes changes will allow school to resume sensitive research

Muscle cells grown on plastic supports could one day heal damaged hearts

Megaquake could kill millions around Bay of Bengal

Quails conditioned to expect coitus sire more offspring

Government okays research that combines animal and human cells for disease research

Genome pioneer is the first person to have both copies of each chromosome sequenced

New class of drug curbs disease symptoms without inducing weight gain or movement problems

Archaeologists trace the origins of pig domestication in Europe

Infiltration of host genomes suggests an expanded role for gene swapping

Composer's doctor might have inadvertently poisoned him

Neandertal genome sequencing data called into question

Volcanoes fill gap in understanding ancient Earth's atmosphere

Dementia risk goes up in young women lacking the hormone

Older men who mate with younger women have evolutionary advantage

Rare mutation helps sperm progenitor cells divide faster

With age, the brain's response to negative emotions may wane

Decades of conservation work in Colorado foiled by case of mistaken identity

New research challenges how stem cells keep their chromosomes error-free