Latest Kevin McGraw Stories
"What you see is what you get" often is the mantra in the highly competitive life of birds, as they use brilliant displays of color to woo females for mating. Now researchers are finding that carotenoids -- the compounds responsible for amping up red, orange, and yellow colors of birds -- also may play a role in color perception and in a bird's ability to reproduce, making it a cornerstone in birds' vitality. These are among the findings presented by Kevin McGraw, an Arizona State University...
A manipulation of breast feather color results in higher testosterone levels for male barn swallowsIn the world of birds, where fancy can be as fleeting as flight, the color of the bird apparently has a profound effect on more than just its image. A new study of barn swallows reveals it also affects the bird's physiology.A team of researchers, including one from Arizona State University, found in an experiment that involved artificially coloring the breast feathers of male barn swallows the...
- Remarkable; prodigious.
- Audacious; gutsy.
- Completely; extremely.
- Audaciously; boldly.
- Impressively great in size; enormous; extraordinary.