Tag: "odd" at biology news

UC Geologist "Flip-Flops" On Understanding Of Crinoid Life Style

...ingaround once more. The determining factor was an odd patternrevealed in the fossilized slabs. Fossils swept by river currentsor tides generally get preserved pointing in a single direction.The Uintacrinus fossils, on the other hand, were arranged in aradial pattern like spokes on a bicycle wheel. Meyer...

Study Shows: Just Say NO To Bone Loss

...ts thrive in thebone environment. They work in an odd tandem with bone-forming cells calledosteoblasts in the bone remodeling process. This is much like theerosion/deposition process of a river bank where material is removed and thendeposited once again. The osteoblasts giveth; the osteoclasts taketh ...

Gene-Altered Mice Boost Studies of Cardiomyopathy: Enables Research Into Causes And Treatment Of Heart Failure

...arance of fibrous tissue between muscle cells, the odd intermingling of oversized and tiny muscle cells, and the appearance of empty spaces within remaining muscle cells. The mice even develop "nutmeg liver," a classic finding in human cardiomyopathy, caused by the back-up of blood flow through that org...

International Research Team Announces Discovery Of Two Species Of Feathered Dinosaurs

...animals with stubby arms, which, despitetheir very odd appearance, are more closely related to modern birds than isArchaeopteryx. "For more than a century, scientific understanding of bird evolution reliedalmost exclusively on a handful of fossils, all of which were discovered in thelate 1800s," says L...

Molecular Mechanism For Evolution Described

...bnormalities persisted. "Once the frequency of the odd variants was enriched by selective breeding(this was how we mimicked the possible effects of natural selection) thetraits no longer depended on decreased Hsp 90," Lindquist explains. "Thatmeans that if such abnormalities should happen to be valuable,...

From Germany To The Wild West: Geologists Hunt For Evidence Of Ancient Crinoid

... slabswith hundreds of organisms intertwined in an odd spoke-like pattern. Typically,marine fossils are preserved lined up in parallel rows when a storm or currentssmother them in sediment. The spoke-like pattern is unique to Uintacrinus and areal puzzle to Meyer. "It's like you take a bunch of 'Pick-U...

CU Research Team Unravels Mystery Of Larceny Among Tropical Ant Species

...g to a University of Colorado at Boulderstudy. The odd practice of food theft among neighboring colonies of the antspecies Ectatomma ruidum is fostered by "chemical camouflage" used by larcenousants to enter nearby nests, said CU-Boulder biology Professor Michael Breed. Success also depends on the vigila...

The Largest Bacterium: Scientist Discovers New Bacterial Life Form Off The African Coast

...he seawater in an"anaerobic lung". It seems rather odd that these bacteria were overlooked so far by marinescientists. During an expedition off the coast of Namibia in the search of othersulfur bacteria known from the pacific coast of South America, biologist HeideSchulz was quite surprised when she look...

Biggest Bacteria Ever Found

...commutingcousins, the Thioploca . These and other odd characteristics, says Schulz,promise to make "the Sulfur Pearls of Namibia" a subject of much research in theyears to come....

"All my friends dream of artificial limbs": US, Russian nuclear labs work with prosthetics company to develop replacement knee

...sthe United States would prefer not have it. In an odd twist, "We will havecreated the world's biggest research center for lower-limb prosthesis in aRussian laboratory," says Lieberman. The first collaboration, on an artificial foot, has reached the stage where thedevices have been experimentally affixed...

Roundworms provide clues to human kidney disease

...s in kidneydisease. "At first glance it seems very odd that you have a gene that's actingin a neuron which is a very different cell type than those cells in the kidney,"Barr said. But, she continued, if you look at what the gene is doing in thecell, regardless of cell type, you can learn about its functi...

Meet Conan the Bacterium

...ent discoveries of probable nanobes living in such odd places as human kidney stones and in limestone 4 kilometers under the surface of the Earth. A common link? "We have a new door opening on the possibilities of lifeforms," Richmond said, "not just new species but whole new life forms that could c...

'Radical' discovery dedicated a National Historic Chemical Landmark

...n organic free radical - a carbon molecule with an odd number of electrons - the chemistry establishment greeted the news with skepticism, then dismissed it as a curiosity. A century later, Gomberg's breakthrough has led to profound advances in biochemistry, biology and medicine, as well as the product...

Cancer's penchant for developing drug resistance is a result of chromosome reassortment, UC Berkeley scientist proposes

...es and proteins in the cell and generates the many odd characteristics of cancer cells. Cells with the wrong number of chromosomes are called aneuploid cells, and scientists have known for a long time that essentially all solid tumors are aneuploid. This was thought to be the result of the genetic mutati...

Geologists explore beach nourishment controversies, groundwater quality, and Blue Ridge mountain issues

...rth Carolina being at the equator and all of those odd fossils? And what's the connection between an extraterrestrial impact near Chesapeake Bay 35 million years ago and today's groundwater? The answers to these questions and more will be explored by over 700 geologists at the 50th annual meeting of the ...

Halfway human

... He suggests three possible explanations for her odd looks. She could have been an aberrant individual. She could be a member of a hitherto unknown population of Indonesian H. erectus with bulging foreheads. Or, he acknowledges, she could represent "a population evolving in the direction of modern huma...

For whales and seals the ocean is not blue

...ese marine mammals lack blue cones, which seems an odd adaptation to a marine environment where the underwater light field is increasingly blue-shifted with depth. Photograph: R. Krger When studying the eyes and retinae of various marine mammals, Leo Peichl from the MPI for Brain Research in Frankf...

Discovery of 'tidal giant'--a new Egyptian dinosaur--reported in Science

...r. "The skeleton was spread around in sort of an odd way, and the bones weren't separated at the bone sutures. In fact, the pelvis was ripped apart, just torn to bits," says Smith. The researchers also uncovered the probable scavenger's calling card-a tooth, too big to have been transported to the site...

Discovery: Scientists find new reason red blood cells cut blood flow in sickle cell disease victims

...ogged blood vessels because of their stiffness and odd shape. Healthy red cells look like ring-shaped life preservers and are somewhat pliable. In the group's experiments, Brittain, working under Parise's direction, used a system that mimics blood flow and shear conditions inside blood vessels, as...

Study helps identify key step in simple motor learning

...led Purkinje cells (pronounced per-KIN-jee). These odd cells are found only in the cerebellum, a part of the brain involved in coordinating and learning muscle movement patterns. "Purkinje cells are very unusual," says Linden, professor of neuroscience and director of the Graduate Program in Neuroscien...

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