A growing branch of research on how plants use exosomes to interact with their environment is opening up a new field of plant biology.

Molecular programs can rescue cells already engaged in the process of apoptosis or other forms of programmed cell death.

Children born to moms who smoked or ingested marijuana during pregnancy suffer higher rates of depression, hyperactivity, and inattention.

Clinical trials that target human endogenous retroviruses to treat multiple sclerosis, ALS, and other ailments are underway, but many questions remain about how these sequences may disrupt our biology.

From changes in gene flow to adaptation, the effects of urbanization are shaping the evolutionary trajectories of plants and animals.

Microbes, traditionally thought to lack organelles, get a metabolic boost from geometric compartments that act as cauldrons for chemical reactions. Bioengineers are eager to harness the compartments for their own purposes.

Biology happens on many levels, from ecosystems to electron transport chains. These tools may help spur discoveries at all of life's scales.

From making ribosomes to protecting the integrity of the genome, these membraneless compartments play important roles in the cell. Their behavior is rooted in basic physics.

As researchers unravel the molecular machinery that links exercise and cognition, working out is emerging as a promising neurotherapy.