Tag: "picky" at biology news
Highlights of the April 2005 Journal of the American Dietetic Association
...ing a young child, could parental pressure lead to picky
eating among kids? In a study published in the Jo...ss likely to be overweight. "Although research on picky
eating is limited, recent findings indicate that prior food experience plays a role in picky
Ancient diets of Australian birds point to big ecosystem changes
... said. "The opportunistic feeders adapted and the picky
eaters went extinct," said Miller. "The most parsimonious explanation is these birds were responding to an unprecedented change in the vegetation over the continent during that time period." Other study authors included Marilyn Fogel of the Carnegi...
'Underground' tunnels discovered as means for communication between immune system cells
... with E. coli, yet macrophages, cells not normally picky
about the antigens they engulf, were completely unresponsive to the bacteria. In order to understand how dendritic cells first sense the presence of an antigen and why the reaction is cell-specific, the authors decided to look at calcium flux, a well...
Picky female frogs drive evolution of new species in less than 8,000 years
... another. The southern females, however, were more picky
about their mates than the northern females. And in one area of contact that had become isolated from the southern range, the southern females were extremely picky, to the extent that they almost never mated with northern males. In laboratory breedin...
Georgia Tech develops technology for more compact, inexpensive spectrometers
...nstruments that they are, spectrometers are pretty picky
about light. But Georgia Tech researchers have developed a technology to help spectrometers -- instruments that can be used as the main parts of sensors that can detect substances present in even ultra-small concentrations -- analyze substances using...
Study: Rain forest insects eat no more tree species than temperate counterparts
...ernative theory that tropical insects are actually picky
eaters who prefer fewer host plants than their temperate counterparts. "Theory predicts that similar species coexist by dividing up resources like food and space," Weiblen said. "The unparalleled diversity of plant-eating insects in the tropics c...
Evolutionary first: Parasite reaches beyond host to play havoc with others' sex lives
....And most importantly, these females had become so picky
about their mates that they were beginning to shun some males of their own species. "In that area in Canada where the two species overlap, the uninfected females' mating practices have changed dramatically," says Jaenike. "When we mixed males from th...
Varied diet of early hominid casts doubt on extinction theory, says Colorado U study
...the notion that it was driven to extinction by its picky
eating habits as the African continent dried, says a new University of Colorado at Boulder study. The new study shows that Paranthropus robustus, once thought to be a "chewing machine" specializing in tough, low-quality vegetation, instead had a d...
Grizzly bears feast on diverse diet
Theres no such thing as picky
grizzly bearstheyll eat almost anything they can find. A new University of Alberta study that tracked food habits of the Alberta grizzly bear living in the foothills sheds some light on the animals varied diet and their activity pattern. Alberta be...
Ewwwww! UCLA anthropologist studies evolution's disgusting side
...od-borne, but our ancestors could not afford to be picky
all the time about what they ate," Fessler said. "...ky point in pregnancy by increasing the urge to be picky
about food, however much additional foraging that required. That the sensitivity seems to lift as th...
White blood cells are picky about sugar
... that these key cells of the immune system weren't picky
and would eat anything that looked foreign, adds Fink, who is also an MIT professor of biology. Ifat's work has shown that the cells aren't little Pac-Men, but can discriminate one pathogen from another. Rubin-Bejerano had evidence that neutrophils...
Tropical insects 'go the distance' to inform rainforest conservation
... that plant-eating insects in tropical forests are picky
eaters that stay close to home dining only on locale-specific vegetation is being challenged by new research findings that suggest these insects feast on a broader menu of foliage and can be consistently found across hundreds of miles of tropical ...