Colour change in animals can occur over different timescales and aids communication and camouflage. Direct evidence of the associated energetic costs has been lacking, but now an experimental study of ...

Chameleons, often thought to change colour solely for camouflage, primarily use this ability for communication and ...

Not all poisonous gases have a smell or a color. But a tiny grid of pastel- and candy-colored squares that effectively “sniffs” out hazardous chemicals in the air such as chlorosarin — a highly toxic ...

These Tiny Bees Change Color Right Before Your Eyes—And They're Not Even Trying ...