Subscribe
Subscribe
MY AMERICAN SCIENTIST
LOG IN! REGISTER!
SEARCH
 
Logo IMG
HOME > MULTIMEDIA > Multimedia Detail

SCIENCE IN THE NEWS DAILY

Marked-Up Birds Become Sexier, Exude Testosterone

from the Los Angeles Times (Registration Required)

WASHINGTON (Associated Press) - A little strategically placed makeup quickly turns the wimpiest of male barn swallows into chick magnets, amping up their testosterone and even trimming their weight, new research shows. It's a "clothes make the man" lesson that -- with some caveats -- also applies to human males, researchers say.

Using a $5.99 marker, scientists darkened the rust-colored breast feathers of male New Jersey barn swallows, turning lighter birds to the level of those naturally darkest.

They had already found, in a test three years ago, that the marked-up males were more attractive to females and mated more often. This time they found out that the more attractive appearance, at least in the bird world, triggered changes to the animals' body chemistry, increasing testosterone.

Read more ...


comments powered by Disqus
 

Connect With Us:

Facebook Icon Sm Twitter Icon Google+ Icon Pinterest Icon RSS Feed Instagram Icon

Latest Multimedia

VIDEO: The Promise and Peril of Drones

CummingsDrones

The automation of tasks at work and at home is just around the corner, including driving cars, piloting planes, delivering packages, and transporting weapons. Unmanned aerial vehicles are rapidly evolving to meet both society’s and the military’s needs in automation and better efficiency.
During her time as one of the first female fighter pilots in the US Navy, Dr. Missy Cummings observed that computers could take off and land a plane more precisely than humans. Because of this breakthrough and her fascination with this growing technology, she began human–drone interaction research.

To view all multimedia content, click "Latest Multimedia."



RSS Feed Subscription

Receive notification when new content is posted from the entire website, or choose from the customized feeds available.


EMAIL TO A FRIEND :

Of Possible Interest

Science in the News Weekly: 'Open Tree of Life' to Include All Known Species

Science in the News Weekly: Science at the Top of the News for June 4-8

Science In The News Daily: Records of Birds from a Time Gone By

Subscribe to American Scientist