A study in mice finds that for certain genes, one parent’s allele can dominate expression and shape behavior—and which parent’s allele does so varies throughout the body.
In mice, epigenetic marks made on histones during infancy influence depression-like behavior during adulthood. A drug that reverses the genomic tags appears to undo the damage.
Psychedelics are evolutionarily ancient compounds produced by fungi, plants, and microbes. Humans also synthesize psychedelics. Researchers want to know how and why.