The oceans of today look different from the oceans of 20 years ago, researchers found in a new study. Around 56% of the world's oceans have changed color, with the blue waters becoming greener over ...

Color change in animals is a response shaped by evolution. Each species has developed its own method and reason for this ability, like an overreliance on light or temperature cues, or a physiological ...

After a heatwave in China, a cat owner from Henan province suddenly noticed that his Siamese cat’s face looked quite different. The dark mask around its blue eyes had almost disappeared. But how is ...