News tagged with feather
When a whistle beats a tweet
Sep 01, 2009 |
not rated yet |
1
Biologists have discovered that a species of Australian pigeon has a secret way of alerting fellow birds to predators -- a "whistle" emitted by flapping wings when the bird takes off in alarm.
Iridescence found in 40-million-year-old fossil bird feather
Other Sciences / Archaeology & Fossils
Aug 26, 2009 |
4.5 / 5 (8) |
3
Known for their wide variety of vibrant plumage, birds have evolved various chemical and physical mechanisms to produce these beautiful colors over millions of years. A team of paleontologists and ornithologists ...
Biodiesel on the wing: A 'green' process for biodiesel from feather meal
Jul 22, 2009 |
3 / 5 (2) |
1
Scientists in Nevada are reporting development of a new and environmentally friendly process for producing biodiesel fuel from "chicken feather meal," made from the 11 billion pounds of poultry industry waste ...
Scientists are learning more about big birds from feathers
Jul 06, 2009 |
not rated yet |
0
(PhysOrg.com) -- Catching adult eagles for research purposes is no easy task, but a Purdue University researcher has found a way around the problem, and, in the process, gathered even more information about ...
Feather fibers fluff up hydrogen storage capacity
Jun 23, 2009 |
4.3 / 5 (12) |
15
Scientists in Delaware say they have developed a new hydrogen storage method -- carbonized chicken feather fibers -- that can hold vast amounts of hydrogen, a promising but difficult to corral fuel source, and do it at a ...
What limits the size of birds?
Jun 16, 2009 |
5 / 5 (6) |
2
Why aren't birds larger? Fifteen-kilogram swans hold the current upper size record for flying birds, although the extinct Argentavis of the Miocene Epoch in Argentina is estimated to have weighed 70 kilograms, the size of ...
Feather color is more than skin deep
Apr 15, 2009 |
3 / 5 (1) |
0
Where do birds get their red feathers from? According to Esther del Val, from the National History Museum in Barcelona, Spain, and her team, the red carotenoids that give the common crossbill (Loxia curvirostra) its red coloration ...
