Tag: "tails" at biology news
With record resolution and sensitivity, tool images how life organizes in a cell membrane
...that point outward and water-fearing (hydrophobic) tails
that point inward. The cell membrane is studded with proteins like receptors and ion channels, which cross the membrane many times and transmit signals from the outside of the cell to the inside. Others don't cross the membrane at all-they are anchor...
How does a zebrafish grow a new tail?
...estion of how cold-blooded animals re-grow missing tails
and other appendages has fascinated veterinary and...hat have a mutant Wnt5b protein regenerate missing tails
very quickly. Too much of another related protein, Wnt8, also increases cell proliferation in the re...
The price of vanity: Mating with showy males may reduce offspring's ability to fight off pathogens
...ossess showy traits such as bright colors or long tails
and fins results in higher testosterone levels in males over many generations. Because male and female testosterone levels are correlated, female choice also results in an increase in female testosterone levels. Testosterone is an immune suppress...
UCF student's research with Disney giraffes may help conserve several species
... and kudu munch on grass, the giraffes flick their tails
and chew on oak trees and occasional treats. Fewster, a native of Willow Grove, Penn., and a resident of Clermont, watches it all taking notes and waiting for the giraffes to deliver their payloads. Fewster worked with giraffes and other animals ...
Researchers find suntan's 'master regulator'
...er. Fishers team further found that the ears and tails
of mice lacking p53 lose the ability to tan. Similarly, the induction of -endorphin by UV also depends on p53. "The induction of -endorphin appears to be hard-wired to the tanning pathway," Fisher said. "This might explain addictive behaviors assoc...
ASU research shows connection between testosterone, dietary antioxidants and bird coloration
...es, said McGraw. The reason typically is that long tails
and fancy dances incur costs. Testosterone, for example, has been thought of as a double-edged sword as it relates to sexual signals, because it enhances trait production but comes at a health price to the animal. This study shows that testosterone...
Electric fish conduct electric duets in aquatic courtship
... electric fields from a batterylike organ in their tails
to sense their surroundings and communicate their species, sex and social status with other fish. It is also the first study to successfully sort signals in electric fish based on sex. The research, which is the cover story in the July 1 issue of t...
It don't mean a thing if it ain't got that (modern) swing
... the newer one, arching their backs, raising their tails
and beaks and doing a come-hither flutter of the wings in a controlled laboratory test that Derryberry calls the "copulation solicitation assay." If they really liked it, in fact, they'd start the dance even before the 2-1/2-second song was over. "It...