A prairie butterfly shifts color, behavior, and eye biology across seasons. Sunlight and air guide how it moves and senses ...

Adults with a normal BMI can still face heart risks from excess abdominal fat. New research shows why waist size deserves ...

The first global atlas of Martian watersheds reveals 16 huge ancient river systems that once shaped Mars and may hold clues ...

A newly-detected spinning galaxy filament is reshaping our understanding of cosmic structure, gas flows, and the origins of ...

Scientists created fake words to test if sound affects memory. Result: people remembered pleasant-sounding words twice as ...

Researchers map the organized stages of bumblebee defense, from the first wing buzz to the final calming signals that reset ...

A Swedish study reviewed 196 studies to understand biophobia, why people fear or dislike nature, and how those feelings can ...

Giant anacondas grew large early and kept that size for millions of years, surviving climate shifts and habitat changes ...

Two-thirds of adults develop diverticular disease without knowing it. New data reveals how this potentially serious disease ...

Scientists reveal the existence of a new species of Colombian porcupine, Coendou vossi, that remained hidden for decades in ...

A routine expedition surprises scientists by revealing a unique animal, Mustela mopbie, with a secret ability that could ...

Heart doctors are capturing images of the inside of heart arteries, helping them watch plaque respond to cholesterol drugs in ...