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prefer in Biological News

Female katydids prefer mates 'cool' in winter and 'hot' in summer

COLUMBIA, Mo. Katydid (or didnt she?) respond to the mating call of her suitors. According to scientists at the University of Missouri, one species of katydid may owe its ecological success and expanded habitat range to the ability of male katydids to adjust their mating calls to attract females....

Girls prefer pink, or at least a redder shade of blue

A study in the August 21st issue of Current Biology, a publication of Cell Press, reports some of the first conclusive evidence in support of the long-held notion that men and women differ when it comes to their favorite colors. Indeed, the researchers found that women really do prefer pinkor at l...

Male chimpanzees prefer mating with old females

Researchers studying chimpanzee mating preferences have found that although male chimpanzees prefer some females over others, they prefer older, not younger, females as mates. The findings uncover a stark contrast between chimpanzee behavior and that of humans, their primate cousins. The basis for ...

Zebra finch males prefer females with exaggerated maternal traits

Researchers have demonstrated that learning about the appearance of their parents may give birds a preference for mates with exaggerated parental traits, rather than traits that more exactly match those of their parents. Such learned mate preferences may help drive the evolution of exaggerated trai...

Predators prefer to hunt small-brained prey

They avoid more intelligent prey such as monkeys which have exceptionally large brains and are more capable of escaping attacks. The study, carried out by Dr Susanne Shultz, from the School of Biological Sciences, focused on predators from Africa and South America such as the jaguar, chimpanzee,...

Man's best friend: Study shows lonely seniors prefer playtime with pooch over human interaction

A new Saint Louis University study shows there is some truth in the old cliché that describes a dog as "man's best friend." "Or at least a less aggravating friend," said study author William A. Banks, M.D., professor of geriatrics in the department of internal medicine and professor of pharmacolo...

Older female fish prefer imperfect male mates, study finds

There's hope for the less-than-perfect male ?if you're a swordtail fish, that is. As the size and age of female swordtail fish increase, so does the preference for males with asymmetrical markings, according to a new Ohio University study. Molly Morris, associate professor of biological sciences,...

Humans lend a hand to critically endangered waterbird

...of the birds survive around half of the global population. Working in partnership with BirdLife International, the researchers found that the ibis prefer to forage in open and accessible sites with low vegetation and bare soil. This is believed to be because it makes it easier to find prey, aids take-of...

Ants more rational than humans

...their fitness contribution." "Which means that it would be irrational to prefer choice 'A' to 'B' on Tuesday and then to prefer 'B' to 'A' on Wednesday, if the fitness returns of the two options have not...

Noise pollution negatively affects woodland bird communities, says CU-Boulder study

...ors and less competition from other songbirds that prefer quiet environments. The three-year study compar...rds -- the western scrub jay -- which was shown to prefer the quiet woodland sites. Western scrub jays, ...those in noisy areas, he said. Woodland birds that prefer noisy areas may even use the clamor of civilizatio...

Sex involved in plant defense

...ual species and lived longer while doing so. The results were a bit different for so-called "specialist" plant-eaters, however. Those insects that prefer just one kind of food were more apt to munch on sexually reproduced species of plant. This most likely occurs, Johnson says, because specialized plant...

Our 'caveman logic' embraces ESP over evolution

...SP, ghosts, and angels over the scientific theory of evolution. While science offers a wealth of rational explanations for natural phenomena, we often prefer to embrace the fantasies that reassured our distant ancestors. And we'll even go to war to protect our delusions against those who do not share them. ...

Gear bans 'can help save reefs'

...ir livelihood" Dr Cinner says. This middle way is also more likely to be taken up by fishers. "In other research we've found that fishers themselves prefer gear restrictions to total closures, because most fishers use several types of gear so they can still earn a living when the use of one sort of gear i...

Help for climate-stressed corals

...ir livelihood" Dr Cinner says. This middle way is also more likely to be taken up by fishers. "In other research we've found that fishers themselves prefer gear restrictions to total closures, because most fishers use several types of gear so they can still earn a living when the use of one sort of gear i...

Global sunscreen won't save corals

...s deep cuts in human emissions of carbon dioxide to be the most effective safeguard against a global environmental crisis. "One of the good reasons to prefer CO 2 emissions reductions over geoengineering is that CO 2 emissions reductions will protect the oceans from the threat of ocean acidification, wher...

American Chemical Society weekly presspac -- June 10, 2009

.... The study is in the current issue of ACS' Molecular Pharmaceutics , a bi-monthly journal. Colin Pouton and colleagues note that patients by far prefer pills and capsules to the discomfort and inconvenience of injections. But many medicines and vaccines cannot be given by mouth because they would be d...

Zebra mussels hang on while quagga mussels take over

...food. But the cousin species are different in many ways, too. Zebra mussels prefer to attach to a hard surface, while quagga mussels can live on soft bottoms, such as sand or silt. Zebra mussels also prefer warmer water temperatures and do not grow as big as quagga mussels. Peye...

Wildlife Conservation Society supports world's first study of egg-laying mammal

...chidna ends in a tiny mouth with no teeth. Long-beaked echidnas feed on insect larvae, worms, and other invertebrates (whereas short-beaked echidnas prefer ants and termites). Echidnas and platypuses are more reptile-like than other mammals, with features such as: a more sprawling gait; and a single open...

MU study finds connection between evolution, classroom learning

...f the fast expansion of new academic knowledge, humans are not yet equipped to easily understand things like chemistry, mathematics or physics. Humans prefer to engage in peer relationships because of natural bias that helps them learn about and influence their peer groups. While the need to learn about oth...

Consumers more likely to identify healthy food using traffic light nutrition labels

...s have labels and in many countries several different systems are used. "Food manufacturers are currently allowed to use any labelling system they prefer on the front of food packages. In some countries this has led to a plethora of different systems appearing on supermarket shelves, which only serves t...

First jaguar photo taken at Smithsonian Research Station in Panama

... carnivore, is the largest cat in the Americas. Adult males can weigh more than 300 pounds. Strong swimmers, jaguars tend to live near water and often prefer rainforests and seasonally flooded swamp areas. Historically, they ranged from the southern United States to northern Argentina. Habitat loss due to a...

Sexual harassment from males prevents female bonding, says study

... Croft of the University of Exeter said "This is an extremely interesting result as it appears that females that experience sexual harassment actually prefer to avoid other females with whom they associate the negative experience." Those females that were grouped without males were better able to recogni...

Red pandas reveal an unexpected (artificial) sweet tooth

...ion and water for 24 hours. The animal was said to prefer the sweet solution when it drank much more sweet f...ected from the previous findings, the lion did not prefer any of the sweet solutions. This could be explain...o sweet receptor, the lion is unable to detect or prefer sweet-tasting compounds. Each of the remainin...

UW-Madison study reveals new options for people with PKU

...ng four. (Subjects spent the first two days of the study at home.) In the end, no adverse health problems were found, and 10 of 11 subjects claimed to prefer the GMP diet, making the bottom line of this study the same as the first that GMP is safe and acceptable. In this shorter study, variations were ...

Crabs' memory of pain confirmed by Queen's academic

...s unpleasant for them. This shows that central neuronal processing occurs rather than the response merely being a reflex. Hermit crabs are known to prefer some species of shells more strongly than others and it was found that that they were more likely to come out of the shells they least preferred. ...

Liking sweets makes sense for kids

...ogical need by pushing them towards energy sources," said Monell geneticist Danielle Reed, PhD, one of the study authors. Across cultures, children prefer higher levels of sweetness in their foods as compared to adults, a pattern that declines during adolescence. To explore the biological underpinnings ...

Female mammals follow their noses to the right mates

...are found in birds. The classic case is the peacock's tail. The ornate tails do nothing to help peacocks survive. Rather, they emerged because peahens prefer to mate with males that have showy plumage. Such vivid examples of female preferences in mammals are harder to find, leading to an assumption that...

Danger lurks underground for oak seedlings

...ust below the surface to find some answers. Purdue University researcher Robert Swihart found that pine voles, small rodents that live underground, prefer oak roots to those of other commonly growing seedlings. The study identifies the rodents as a possible factor leading to high oak mortality rates that...

Understanding natural crop defenses

...ighboring plants." And that's exactly what first author Javier E. Moreno, a graduate student in Ballars lab, found. Fall armywormscaterpillars that prefer to chomp on corn, sorghum and other members of the grass family but won't say no to beans, potatoes, peanuts, cotton and other cropsgrew twice as fast...

DNA evidence is in, newly discovered species of fish dubbed H. psychedelica

...f the harbor reef. Fins on either side of their bodies have, as with other frogfish, evolved to be leg-like, and members of H. psychedelica actually prefer crawling to swimming. See a QuickTime video of them crawling at http://uwnews.org/article.asp?articleID=47496 . The species has a flattened face...

When fish farms are built along the coast, where does the waste go?

...r swirl into eddies at the edges of the pen? Even the effects of the rotation of the earth on the waste plume comes into play. The fish farmer would prefer that currents flush out his pens frequently, but as those currents take out the garbage they might unfortunately deliver it to a mangrove ecosystem or...

Artificial cells, simple model for complex structure

... other completely apart," says Keating. "But the two aqueous phases are different enough that additional molecules, such as proteins or nucleic acids, prefer one over the other and will become concentrated there." In bulk materials, researchers have been able to cause aqueous phase separation of up to 15...

High Performance, Low-Cost VoIP Chips Address Critical Performance Issues Such as Echo, Latency, and Packet Loss

... modifications be necessary for your project, Adaptive Digital can customize a solution to fit your specific requirements. Additionally, for those who prefer in-house product development, source code is available, encouraged, and supported. While other VoIP chip manufacturers do not allow customers to acces...

Defectors take the car, cooperators go by bus

... the well-known "game theory" game Chicken Dilemma. "The simulation shows that it is quite possible to achieve a situation when the majority of people prefer mass transportation," he says, "This can be done by running large buses frequently and on separate traffic lanes." Ultimately, the simulation shows...

U of T technique put to use to test clean up of contaminated groundwater

...basis for the hydrocarbon contaminants actually come in two types called isotopes, explains Sherwood Lollar. "When microbes degrade contaminants, they prefer the lighter isotope carbon 12 over the heavier isotope carbon 13. The resulting change in the ratio of these isotopes in the contaminant itself is a d...

New World post-pandemic reforestation helped start Little Ice Age, say Stanford scientists

...nse that maybe we were looking at the right thing, because that is exactly what you would expect from reforestation." During photosynthesis, plants prefer carbon dioxide containing the lighter isotope of carbon. Thus a massive reforestation event would not only decrease the amount of carbon dioxide in th...

Attitudes towards assisted reproduction and preimplantation genetic diagnosis

...France, Denmark, Israel, and the Czech Republic. In Spain too, this option was supported by a relative majority Countries where a relative majority prefer the adoption route: Germany, Austria, Italy, Poland, and the United States Finally, in the United Kingdom and Ireland, opinions are more evenly div...

Girls have superior sense of taste to boys

...it is quite clear that children do not necessarily prefer sweet things. According to the findings, healthy s...ise the taste. Every third schoolchild would prefer not to eat sweet things Another sensational finding is that every third schoolchild would prefer non-sugary soft drinks. All the pupils did a blind...

Honey adds health benefits, is natural preservative and sweetener in salad dressings

...TA in protecting against oxidation or spoilage. Blueberry honey performed slightly better than clover," she said. Engeseth said that many consumers prefer products with natural ingredients and that salad dressings made with honey should appeal to these consumers. "There's such a wide range of salad dr...

Study reveals effects of unconscious exposure to advertisements

...give way to short-lived fads. But while this may seem illogical, Changizi argues that it makes perfect cognitive sense. "A rational animal ought to prefer something in proportion to the probable payoff of acting to obtain it," said Changizi, assistant professor of cognitive science at Rensselaer and lead...
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