It is one of the oldest mysteries in science. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Octopuses might be nature's ultimate weirdos: They ...

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 ...

Many people who keep fish at home notice one common thing after some time. The fish does not look the same as it did earlier. The colour looks different. Sometimes it becomes brighter. Sometimes it ...