Engineers discover why toucan beaks are models of lightweight strength
As a boy growing up in Brazil 40 years ago, Marc A. Meyers marveled at the lightweight toughness of toucan beaks
that he occasionally found on the forest floor. Now a materials scientist and professor of mechanical and aerospace engineering at UCSD's Jacobs School of Engineering, Meyers said makers...
Scientists are learning more about big birds from feathers
...00 to 1,000 times greater than catching chickadees."
Eagles can be hard to find, they often require live bait to attract and, with sharp talons and beaks
capable of snapping off human fingers, they pose a risk to their would-be captors.
Instead of catching eagles, DeWoody collects their feathers and ...
Darwin in a test tube
...ted and studied different species of finches on several of the Galapagos Islands. The finches differed in their beak structure some had thick, strong beaks
and others had thin, delicate ones. Darwin observed that the different finches were each adapted for the specific types of seeds that served as their ...
MIT solves gravity-defying bird beak mystery
...s Charles Darwin showed nearly 150 years ago, bird beaks
are exquisitely adapted to the birds' feeding stra...d exactly how some shorebirds use their long, thin beaks
to defy gravity and transport food into their mout...r prey trapped inside. Since the birds point their beaks
downward during the feeding process, gravity must ...
Scientists find that squid beak is both hard and soft, a material that engineers want to copy
...en found in numbers in Southern California waters. Dozens of dead squid have recently washed up on campus beaches, providing the researchers with more beaks
Homing pigeons get their bearings from their beaks
...ic field for their navigation, although just how this is done has not yet been clarified. However, the discovery of iron-containing structures in the beaks
of homing pigeons in a new study (1) by Gerta Fleissner and her colleagues at the University of Frankfurt offers a promising insight into this complex...
UF scientists discover new genus of frogmouth bird in Solomon Islands
...eir strikingly wide, strong beak that resembles a frog’s mouth; but their beak also sports a small, sharp hook more like an owl’s. Steadman said their beaks
are like no other bird’s in the world. They eat insects, rodents, small birds ?and yes, even frogs. For perspective on the scale of evolutionary diffe...
Scientists crack rhino horn riddle
... also ends speculation that the horn was simply a clump of modified hair.
"The horns most closely resemble the structure of horses' hoofs, turtle beaks
and cockatoo bills. This might be related to the strength of these materials, although more research is needed in this area," said Tobin Hieronymus, a...
Zebra finch males prefer females with exaggerated maternal traits
..., they were tested with females with a spectrum of beak colors ranging from extreme orange to extreme red. Males in both groups preferred females with beaks
that were more extremely colored than their mothers' beaks. This "peak shift" effect is known from other learning processes in which animals learn to ...
Bugs, even 'bad' ones, can be educationally beneficial, new book says
...hion scale (Icerya purchasi), accidentally imported from Australia, threatened California's early citrus industry. At times these pests, whose sucking beaks
are permanently attached to and suck juice out of leaves, infested trees so densely that the trees appeared to be covered with snow.