When observing small worms under a microscope, one might observe something very surprising: the worms appear to make a ...

A large study has revealed that dozens of widely used chemicals can damage beneficial gut bacteria. Many of these substances, ...

Life begins with a single fertilized cell that gradually transforms into a multicellular organism. This process requires ...

A global catalog shows how creatures across the tree of life balance rigidity with flexibility in remarkably consistent ways ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

Revolutionary-era smallpox, the still-mysterious ignition of the Black Death, a modern measles outbreak shaped by community identity and distrust, and the promise of genetics to build safer drugs—a ...