There are five primary types (bottom row) of pigment-filled sacks, called melanosomes, within the nanostructure (left)` of iridescent feathers ... Microscope images adapted from Durrer (1977).

But there is one natural wonder that just about all of us can see, simply by stepping outside: dinosaurs using their feathers to fly. Birds are so common, even in the most paved-over places on ...

Getty Images A diverse range of feathers enable birds to exploit different roles from attracting mates, to hovering or floating But flight was just one highly successful experiment with feathers.

Researchers attached covert feather-inspired flaps to a 3D-printed model airplane wing and mounted it in a wind tunnel to explore the role of covert feathers in bird flight. By precisely measuring how ...

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Click on the images below to see how our understanding has changed. Now let’s say you’re on the Moon. If you were to drop a hammer and a feather from the same height, which would hit the ...

America’s golden eagles face a rising threat from a black market for their feathers used in Native American powwows and other ...

And that’s just the beginning of the story. In the fall of 1889, George Elliott Cuthbert was steering his canoe along a lake edge deep in Florida’s Great Mangrove Swamp when he saw a white feather ...

An online forum where users post images and feedback. Originating in Japan, image boards cover numerous topics, each subject known as a "board." Image boards may have "chan" in their title such as ...

It indicates an expandable section or menu, or sometimes previous / next navigation options. PNG is a popular graphic file format, perhaps second only to JPG today. It has a few advantages over ...

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