There are five primary types (bottom row) of pigment-filled sacks, called melanosomes, within the nanostructure (left)` of iridescent feathers. Thick rods are found in birds with weak iridescent ...
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 ...
Ornithologist Carla Dove explains how the microscopic structure of a bird's feather can help identify the species and at the same time, make air travel safer for humans 5 Record-Breaking Bird ...
Using a telephoto lens to isolate the bird, Arthur framed his shot tightly. He captured the anhinga using its strong, dagger-shaped bill to secrete oil from its preen gland, spreading it onto its ...