In the tangled darkness of Southeast Asian mangrove forests, one crab species appears to have evolved a structure that ...

This study presents a valuable assessment of increased similarity in visual appearance combined with an increased chemical difference between two butterfly species in sympatry compared with ...

A stunning cloud iridescence created a bright silhouette above the mountains in the Philippines. Footage shows the optical ...

A stunning cloud iridescence created a bright silhouette above the mountains in the Philippines. Footage shows the optical illusion shimmering in the sky in Davao del Sur. Pastel blue, reddish ...

Another hallmark of structural colour is its iridescence: the colour can change dramatically depending on the angle of viewing and lighting, giving surfaces a brilliant, metallic quality.