If the structures identified in a 2.1-billion-year-old rock are really signs of burrowing organisms, it would push back the earliest known mobile organisms by 1.5 billion years.

A recent meeting about the disconnect between scientific and public beliefs points to ways researchers can improve how they communicate with skeptics.

New studies suggest forebears’ age and physical proximity matter when it comes to their grandkids’ survival.

Sea fireflies spew a mucus with a chemical glow to lure mates and avoid being eaten.

Countries with populations whose average adult height grew late last century are more likely to have high rates of babies delivered surgically.

Mice exposed to heat wave temperatures ate less and showed weakened immune responses to the virus.

Immune cells in the mouse gut help recognize damaging compounds and prompt intestinal stem cells to repair DNA.

Researchers find that it’s not just high-risk genes, but how children’s bodies respond to their own intestinal microbiota that relates to future diagnoses of type 1 diabetes.