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Tag: "largest" at biology news

Dinosaurs -- stones did not help with digestion

...ome of which weighed more than 30 tonnes, were the largest herbivores which have ever existed. Many of them h... dinosaurs possess. Among these the ostrich is the largest herbivore. For their investigations, the scientists therefore offered stones such as limestone, rose...

Commercial fishing causes dangerous fluctuations in fish populations

...ublished in today's Nature, involved compiling the largest ever survey of both exploited fish and non-exploited fish off the California coast. The research team looked at how the abundance of both types of fish varied over a 50 year period, and found the first evidence that exploited species' population leve...

Oldest animal fossils may have been bacteria

...separate findings about Thiomargarita, the world's largest known living bacterium. In 2005, Thiomargarita discoverer Heide Schulz, from the University of Hannover in Germany, showed that the bacterium promotes deposition of a mineral known as phosphorite. The fossils identified as eggs and embryos in 199...

Humpback whales have brain cells also found in humans

...nd in the same location in toothed whales with the largest brains, which suggests that they may be related to...etaceans, but were retained only in those with the largest brains during their evolution. It may also be that they evolved several times independently in the t...

Search on for treatment of slow-healing wounds

...m, the better." The NIH grant will represent the largest single medical research project at the center. "The ultimate goal," James said, "is to heal people's wounds, save their limbs, and their lives,"...

Blue eyes -- A clue to paternity

...c partners. Blue-eyed men were the group with the largest proportion of partners of the same eye color. According to Bruno Laeng and colleagues, "It is remarkable that blue-eyed men showed such a clear preference for women with the same eye color, given that the present experiment did not request partici...

Researchers make progress in studying genetic traits of India-born populations

... Indian populations. This study represents the largest study of Indian genetic variation performed to date, in terms of the total number of sites in the human genome that were surveyed. The researchers found that populations from India, and more generally, South Asia, make up one of the major human...

Disappearing nest egg: Researcher studying declining numbers of macaws

...may have a less-than-colorful future. Macaws, the largest members of the parrot family, have seen their numbers decline in recent decades, and that trend is continuing today. Dr. Don Brightsmith, a bird specialist at Texas A&M University's Schubot Exotic Bird Center, part of the College of Veterinary ...

Elasticity imaging identifies cancers and reduces breast biopsies

...opsy in 99 patients. Lesions were measured for the largest length on both the standard ultrasound image and the elasticity image. Lesions where the elasticity image was smaller than the standard image were characterized as benign, and lesions where the elasticity image was larger were characterized as malign...

'Fruit fly dating game' provides clues to our reproductive prowess

...erminating two thirds of all species in one of the largest mass extinction events in the history of life. It's that impact ?not Chicxulub ?which left the famous extraterrestrial iridium layer found in rocks worldwide that marks the impact that finally ended the Age of Reptiles. "The Chicxulub impact could...

Far more than a meteor killed dinos

...erminating two thirds of all species in one of the largest mass extinction events in the history of life. It's that impact ?not Chicxulub ?which left the famous extraterrestrial iridium layer found in rocks worldwide that marks the impact that finally ended the Age of Reptiles. "The Chicxulub impact could...

Fragmentation rapidly erodes Amazonian biodiversity

...nces USA, summarizes key findings from the world’s largest and longest-running experimental study of habitat fragmentation. The Amazon contains the planet’s most biologically diverse tree communities, with up to three hundred species occurring in an area the size of just two football fields. These fore...

Better sludge through metagenomics

...of the cornerstones of modern civilization--is the largest microbially-mediated biotechnology process on the planet. When it works, it is a microbial symphony in tune with humanity. When it fails, the consequences can be dire. Researchers from the U.S. Department of Energy Joint Genome Institute (DOE JGI)...

Study shows interruption of antiretroviral therapy increases risk of disease and death

Findings from one of the largest HIV/AIDS therapy studies conducted to date show that a specific strategy of interrupting antiretroviral therapy more than doubles the risk of AIDS or death from any cause. Researchers affiliated with the Mailman School of Public Health and Harlem Hos...

Inflammation markers identify fatigue in breast cancer survivors

... surviving longer. Breast cancer survivors are the largest group of patients to overcome any type of cancer in the United States. While patients surviving other types of cancer also can experience the long-lasting fatigue syndrome, a greater proportion of breast cancer survivors endure the condition. Cance...

Eminent inventor of DNA fingerprinting gains new recognition

...esearch and training in genetics. It is one of the largest Departments of Genetics in the United Kingdom and was rated at a Grade 5* in the 2001 national research assessment exercise. It has a diversity of active research groups with a common approach, the use of molecular techniques to resolve the problems ...

Plant diseases threaten chocolate production worldwide

...hes' broom. Black pod occurs worldwide and has the largest impact, while frosty pod and witches' broom are restricted to tropical America. "Frosty pod and witches' broom would devastate cacao production in West Africa, where almost 70 percent of all production occurs," said Ploetz. "In this region, either ...

Large-scale genomics project will hunt genes behind common childhood diseases

...for Applied Genomics will house one of the world's largest programs for genotyping--the process of detecting ...s Hospital of Philadelphia. "As one of the world's largest and most comprehensive pediatric networks, we have a sizable base of patients and families from whic...

The Midas Bug -- the bacterial alchemy of gold

... formation which may be responsible for one of the largest gold deposits in the world, the Witwatersrand deposit in South Africa." Applying molecular biology techniques, Dr Reith discovered a living biofilm on the surface of gold grains collected. DNA profiling of this biofilm identified 30 bacterial speci...

Biologists find regions of rice domestication

...en domesticated just once in history. Rice is the largest staple crop for human consumption, supplying 20 percent of caloric content for the world. By finding the geographic origins of rice, researchers can consider ways to improve the crop's nutritional value and disease resistance, which in turn can hel...

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