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Butterflies lose body fat during metamorphosis

...e required in hibernation, but the reverse must be true since a great deal of metabolic activity is occurring in the butterfly chrysalis." Because of this energy expenditure, Connor and his colleagues surmised that butterflies experience a great loss in body fat during metamorphosis. Using the Blue Morp...

Study: Competition for sex is a 'jungle out there'

...her colleagues found this pattern to be especially true for species that rely heavily on pollinators for reproduction -- those that require outcrossing -- and for trees, in relation to herbs or shrubs, because individuals of the same species tend to be separated large distances when species diversity is...

HortResearch science reveals the natural potential of apples

...fruit at a genetic level we are able to unlock the true potential of nature and present industry with products that meet consumer demand for attractive, novel, exciting new fruits that taste great, are healthy, convenient, safe and sustainably produced." Dr Ferguson said the EST database has already help...

Watching the brain switch off 'self'

...o a 'mindless,' selfless mental state to achieve a true sense of reality," they wrote. ...

Team discovers possible 'universal strategy' to combat addiction

...). However, Zhang says the results could also hold true for other drugs such as cocaine, heroin, and even methamphetamine. Zhang's U of S research team is part of the Neural Systems and Plasticity Research Group, one of several interdisciplinary health sciences research groups at the University. The gr...

Genomics-based vaccine could prevent deadly cattle disease

...mmune response to the parasite. "This study is a true milestone," says Fraser-Liggett, president of TIGR. "It's one of the first to take advantage of genomic technologies and build a test vaccine using immune killer T cells as a screening reagent." In addition to TIGR and ILRI, the research team include...

Extinctions linked to climate change

... gauge the full effects of climate change, and its true impact on biodiversity will often be underestimated, he said. Five years ago, in a study also published in Nature, OSU scientists documented another of the complex impacts of global warming. In that case, they found that greenhouse warming and othe...

First demonstration of 'teaching' in non-human animals

...ly. Professor Franks said: "We also believe that true teaching always involves feedback in both directions between the teacher and the pupil. In other words, the teacher provides information or guidance for the pupil at a rate suited to the pupil's abilities, and the pupil signals to the teacher when pa...

Potential heart benefit found in stem cells

...depth and patient-focused studies to determine the true feasibility of this treatment method." Human Men...se assist in the growth of new blood vessels. The true benefit of stem cells to heart function, however, may be in promoting cardiomyogenesis (CM, the grow...

Evolutionary shifts in olfactory sensitivities in fruit flies

...mates, food, and egg-laying sites. This also holds true for fruit flies in the genera Drosophila. Both the peripheral and the central olfactory systems have been mapped in detail in D. melanogaster, an important model organism for research. However, nine sibling species of D. melanogaster are less well ch...

Scientists discover dozens of new species in 'Lost World' of western New Guinea

...nd proved that the Foja Mountains was the species' true home. The expedition took place almost 25 years after Jared Diamond startled the scientific world in 1981 with his discovery of the forest homeland of the Golden-fronted Bowerbird in the same mountain range. This time, scientists captured the first ...

Mayo Clinic researchers challenge sepsis theory

... this change in receptors in the body is the first true step in the sepsis syndrome, rather than the introduction of a poison," explains Dr. Platt. "The importance then becomes clear. If we really do now have the first cause of sepsis -- not the bacteria, but the unconstrained receptors -- then we can the...

UF scientists trace origin of shark's electric sense

...of the lateral line system. I think this will hold true and is a very important finding. But I'm skeptical about the claim the neural crest gives rise to electroreceptors. It still requires a definitive experiment, where the developing neural crest cells are marked with dye, the embryo develops and the dy...

Study indicates dramatic rise in antibiotic-resistant community-acquired staph infections

...g MRSA may be as simple as employing the tried and true cure of soap and water: "Practice good hygiene," is its primary advice. ...

Study fishes out new role for prostaglandins

...landin had numerous developmental defects, but the true effects of prostaglandins on the embryo were likely obscured by maternal prostaglandin production. Because they develop outside the mother and are transparent, zebrafish embryos provide a unique model in which to examine prostaglandin's role in deve...

Value of services performed by insects tops $57 billion in US

...tes that probably represent only a fraction of the true value, reports Losey, associate professor of entomology at Cornell. This analysis of the economic value of these insect services is the first analysis of its type, said Losey, who co-authored the study with Mace Vaughan, Cornell M.S. '99, conservati...

Ultrasound may help regrow teeth

...e for the device would be 1.4 million users. In a true tale of interdisciplinary work, El-Bialy met Chen at the U of A's new staff orientation. After hearing about Chen's expertise in nanoscale circuit design and nano-biotechnology, El-Bialy explained his own research and asked if Chen might be able to h...

Purdue creates new low-cost system to detect bacteria

...sms," Robinson said. "The same sort of thing holds true for clinical microbiology and other laboratories. With our light-scattering method, it takes less than five minutes to identify harmful organisms after they have grown in a petri dish. The analysis is faster than any other methods in existence, and i...

What's shaped like a pear and has 2 genomes? Check the pond

...It is a master multi-tasker. "This organism is a true generalist," says evolutionary biologist Jonathan A. Eisen, who led the Tetrahymena project while at The Institute for Genomic Research (TIGR) and is now at the University of California, Davis. "Whatever this unicell touches with its hairlike project...

Ancient global warming drove early primates' dispersal

...narios have been proposed to explain how the first true members of the group appeared virtually simultaneo...siers, monkeys, apes and humans, Teilhardina was a true primate, or euprimate. In both Asia and Europe, the genus is the oldest known primate; in North Amer...

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