Studies of the energy-harvesting proteins in primitive cells suggest that key features of photosynthesis might have evolved a billion years earlier than scientists thought.
"Organoid" brain tissue models grown in a lab for two years can help scientists study a critical period of development just before and after birth.
Hybrids, once treated as biological misfits, have been the secret saviors of many animal species in trouble. Reconciling that truth with conservation policies poses a challenge for science.
If DNA repair makes useful mutations more likely, it could accelerate cells’ adaptations to harsh environments.
Mathematical insights into how RNA helps viruses pull together their protein shells could guide future studies of viral behavior and function.