LifeClose-up photographs capture feathers' dazzle factor Heidi and Hans-Jürgen Koch photographed various feathers housed at the Museum of Natural History in Berlin to create these vibrant images Regulars
LifeWhy do seagulls have dark wings? It may help them glide in the air Gliding birds tend to have long and thin wings, but seagulls seem to have a trick that lets them soar on short, wider wings News