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Tag: "wonder" at biology news

Scientists seek useful traits in wild cottons

...s smile, Dad's eyes and Grandpa's laugh, you might wonder what other traits you picked up from the genealogic fabric of the ol' family tree. Scientists at the Texas A&M University System Agricultural Research and Extension at Lubbock are studying the family tree of cotton for much the same reason....

Flies don't buzz about aimlessly!

How you ever stopped to wonder how a fruit fly is able to locate and blissfully drown in your wine glass on a warm summer evening, especially since its flight path seems to be so erratic? Mark Frye at the University of California and Andy Reynolds at Rothamsted Research in the Uni...

Gene variations contribute to aggression and anger in women

Ever wonder why some women seem to be more ill-tempered than others? University of Pittsburgh researchers have found that behaviors such as anger, hostility and aggression may be genetic, rooted in variations in a serotonin receptor gene. Indrani Halder, Ph.D., ...

Living view in animals shows how cells decide to make proteins

...say the findings, made in mice, help explain a key wonder of human biology: how the same genes found in every cell of an individual’s body can produce different proteins in different tissues and organs. These varied proteins, in turn, dictate the function of each tissue or organ. The findings also may of...

Steep oxygen decline halted first land colonization by Earth's sea creatures

...ard for the vertebrates coming out of the water. I wonder if there is a minimum level of oxygen that has to ...around their prey," he said. Ward also began to wonder whether respiratory needs dictated how other organisms' bodies developed. He thought that perhaps, r...

How does a zebrafish grow a new tail?

...nated veterinary and medical scientists. They also wonder if people, and other warm-blooded animals that evolved from these simpler creatures, might still have untapped regenerative powers hidden in their genes. People are constantly renewing blood components, skeletal muscles and skin. We can regenerate ...

Mechanism for neurodenegerative diseases linked to transport proteins

...n intracellular transport. This led researchers to wonder if the deranged polyQ proteins inhibit fast axonal transport in several diseases, including SBMA, in which a mutation in the receptor for testosterone leads to the loss of motor neurons. In the new study, Brady and his co-workers were able to show th...

Dragonfly migration resembles that of birds, scientists say

.... We saw other similarities as well, whichmakes us wonder just how far back in Earth's history the rules formigration were established in its animals." According to fossil records, dragonflies appeared about 285 millionyears ago, predating the first birds by about 140 million years. Wikelski said that the...

Triple threat polymer captures and releases

...ace of these nanostructured materials and began to wonder what was beneath the surface. They found that their materials made a perfect host to serve guest molecules. "We looked at the roughness and complexity of the surface and thought that the surface might provide interesting entrance and exit ports fo...

Penguins waddle but they don't fall down, UH researchers say

...dle, penguins are the quintessence of cute. Small wonder they're featured in Coke commercials, movies like "Madagascar" and "March of the Penguins" and children's toys galore. But one University of Houston professor is looking into a serious side of these ultra-cute creatures. Dozens of teeter-totterin...

Protein 'nanosprings' most resilient found in nature

..."It's hard to believe, but it happens. You have to wonder whether their structure plays an important functional role in sensing forces." Alpha helices are common protein structures, characterized by a single, spiral chain of amino acids stabilized by hydrogen bonds. "We live in a world of forces," Bennett ...

UF study first to quantify validity of DNA I.D. tool using marine snails

...ross some eggs or larvae in an orange shipment and wonder if they are from a dangerous fruit fly or something else to be concerned about," he said. For that matter, this ability to detect species in earlier stages of development could benefit ecologists in their work as well, Meyer said. "Scientists study...

Drugs from the deep blue

...engage your intellectual curiosity with a sense of wonder that comes from standing at the shores of new worlds." ...

'Underground' tunnels discovered as means for communication between immune system cells

...ed and others did not made Drs. Salter and Watkins wonder if there was some sort of physical structure connecting only those cells that discharged. A literature search turned up a handful of papers describing tunneling nanotubules, and further imaging using the highest magnification possible disclosed their...

Discovery suggests why stem cells run through stop signs

... latest discovery with stem cell division makes us wonder if microRNAs also control division of other types of cells such as cancer cells." Other authors on the Nature paper are Kenji Nakahara of Northwestern University and Karin Fischer, Steve Hatfield and Halyna Shcherbata of the University of Washington...

Discovery of T-cell 'traffic control' boosts new drug promise

...une molecules called chemokines. "But we began to wonder why T cells don't always swarm into lymph nodes and flood on into blood vessels that lead to all parts of the body," Goetzl says. "We asked ourselves, 'What is the brake?'" In research with mice that have T cells that lack S1P receptors or have over...

Cats' indifference towards sugar explained

...to taste sweets?" Brand adds, "I say jokingly, no wonder cats are cranky--not only do they have to hunt for their food, but they also can't enjoy a sweet dessert!" Citation: Li X, Li W, Wang H, Cao J, Maehashi K, et al. (2005) Pseudogenization of a sweet-receptor gene accounts for cats' indifference towar...

Hydrogen and methane provide raw energy for life at 'Lost City'

...nd have translucent or invisible shells so it's no wonder we didn't suspect the actual diversity," says Kelley, who was chief scientist on the expedition, which like the 2000 voyage was funded by the National Science Foundation. Other large organisms include crabs, corals and fish. Kelley will be co-princi...

A New Species of Monkey is Discovered in Tanzania: The First in Africa for More Than 20 Years

...places like Tanzania’s Southern Highlands, but the wonder and mystery they contain." Meanwhile, WCS continues its conservation work in the Southern Highlands, while CI and independently funded researchers continue to support conservation efforts in the Udzungwas and in the other Eastern Arc Mountains. “Su...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...ons that suppress solvent-mediated events. It’s no wonder that we could not get reliable results.?/p> Though numerous molecules have been identified as targets for use as nano-scale electronic components such as switches, photoelectric devices and hydrogen generators, some major technical problems have ...

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