Cigarette smoke accelerates eye aging by causing epigenetic changes that block the eye's natural repair genes.

For decades, scientists believed a fertilized egg’s DNA began as a shapeless mass, only organizing itself once the embryo switched on its genes. But new research reveals that the genome is already ...

Growing tissues can crack, break, and dissociate to form structures that can later withstand immense forces.

Early mammalian ancestors were nocturnal, sleeping during the day while the dinosaurs dominated the land. However, some mammalian lineages, including human ancestors, independently transitioned to ...