Five independent groups got different results in a drug-response experiment, despite sharing protocols, reagents, and cell lines. The researchers identify technical variables that could be to blame.

An unusual experiment suggests that interrupted REM sleep can interfere with the amygdala’s ability to process emotional memories overnight—in this case, the distressing memories of listening to oneself sing out of tune.

Researchers seek to untangle the biological mechanisms linking resident microbes to our hearts—and to harness them therapeutically.

The California Institute for Regenerative Medicine has been funding research since it formed in 2004, giving out nearly $3 billion in grants to date.

Scientists won’t need Andrés Manuel López Obrador’s approval to attend meetings internationally, but researchers continue to struggle amidst budget cuts.

Insect eggs can take any shape at almost any size, refuting explanations for their dimensions based on geometric scaling laws or on relationships between egg traits and adult traits.

A study fails to detect ancient proteins among the microbes, adding to the debate about whether peptides can survive tens of millions of years underground.

Independent scientists say the original analysis is flawed; the authors stand by their work and are seeking outside statisticians to reanalyze the data.

Johns Hopkins’s Ted Dawson discusses his lab’s demonstration that misfolded α-synuclein can move from the stomach to the brain and cause physical and cognitive symptoms.