Q: When first learning about genetics, we’re taught that blue eyes are recessive and brown is dominant, but what about green eyes? Also, what are the squiggly lines in light-colored eyes? — Tim Patten ...

From the iridescent wings of a blue morpho butterfly to the bright red feathers of a scarlet macaw, “structural colors” are evident across the natural world. Synthetic versions of these biomimetic ...

Colors may be evolution’s most beautiful accident. Spontaneous mutations that perturbed the arrangement of structural components, such as cellulose, collagen, chitin, and keratin, inadvertently ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It's eight-legged, furry and a very cool shade of cobalt blue. What is it? A tarantula, of course ...