biology

  In the complex machinery of life, few biological processes are as paradoxical as cellular senescence. It is a natural

  In the world of biotechnology, few innovations have sparked as much excitement—and ethical debate—as CRISPR. Short for Clustered Regularly

  Pregnancy is often described as a miraculous transformation—but the changes go far beyond what meets the eye. One of

  For decades, scientists have puzzled over how simple, single-celled organisms evolved into the complex cells that make up plants,

  When we think of sleep, we often picture humans or mammals curled up in beds or nests. But recent

  The idea that every living organism on Earth—plants, animals, fungi, bacteria, and even humans—descends from a single ancient ancestor