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Investigators find that RNAi researcher Olivier Voinnet willfully misrepresented data published in several journals.

Meet botanical illustrator Mindy Lighthipe, who practices environmental activism through art.

Some genetically engineered mice harbor unwanted mutations that hitchhike alongside desired modifications, affecting experimental outcomes.

Circulating tumor cells, exosomes, and DNA can improve the diagnosis of many cancers. But are liquid biopsies ready for prime time?

A bacterium’s ability to distinguish self from non-self can arise spontaneously, a study shows, reigniting questions of whether the trait can be considered an adaptation.

The flatworm, Macrostomum hystrix, can inject its own sperm into its head, a new study shows.

Researchers identify a peptide present in the swine-flu vaccine linked to narcolepsy that may be responsible for the sleep disorder.

Sex assignment in bearded dragons can flip from one based on chromosomes to one driven by temperature, researchers report.

In his bathysphere, William Beebe plumbed the ocean to record-setting depths.

Disease eradication in the 21st century

Macaque trainers in Bangladesh are often bitten by their monkeys, but rarely infected by a particular simian retrovirus.

Holding laboratory mice at temperatures lower than those the animals prefer could be altering their physiology and skewing experimental results.