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Organisms used one of four basic types of metabolic networks after oxygen appeared on Earth

Nonconserved, noncoding regulatory sequences could be new mutation targets

New report shows UK scientists have higher impact in pre-clinical and biological research

Reactions to a recent news story calling for a journal to retract antivivisectionist papers

Scientists say data are too preliminary to determine whether or not the vaccine actually works

Israeli scientists published most stem cell articles per capita since 2000, although US produced most in total

Ohio Supreme Court says university does not have to hand over spinal cord injury training videos to animal rights group

Trio of papers shed light on the molecular mechanisms underpinning dosage compensation of the X chromosome in male fruit flies

Findings provide new clues to why mothers don?t attack fetal tissue

Papers in Nature and Science provide the first methods for observing translation of single protein molecules in real time

Sixteen board members leave the Canadian journal due to ongoing debate over editorial independence

UK's enormous prospective study of genes, environment, and disease begins subject recruitment