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Feces in Biological News

Can feces save the species?

... of Brazil, four dogs trained to detect animal feces by scent are helping researchers monitor rare and ... species in Brazil. The researchers analyze feces found by the dogs to learn about where and how ... Now nearing conclusion, the projects analysis of feces samples shows that all the species studied use ...

Execretion analysis aids primate social studies

... provided methods to extract hormone breakdown products from excreted feces and urine. Alberts will provide examples of what this new sampling has ... evidence for elevated levels of glucocorticoid stress hormone in the feces of female baboons that had lost a close female companion, researchers ...

Antibiotics take toll on beneficial microbes in gut

... normal microbes after an untreated mouse was placed in the same cage. That wasn't a complete surprise, since mice have a habit of eating the feces of their cage mates and therefore picked up normal gut microbes quickly. Not a lesson applicable to humans? In patients with refractory ...

New tracking approach will help protect polar bears

... the meat are sent to Dr. Boag's lab, where the number and sex of the animals are determined using DNA markers. At the same time, samples of bear feces are collected and genetically screened by collaborators at the Laboratory of Wildlife Diseases at the San Diego Zoo for the presence of ...

Diuscovery in amber reveals ancient biology of termites

... evolutionary scale the termites began producing a liquid that contained protozoa that they would excrete. The termite offspring in turn consume the feces and thereby gain the protozoa in their digestive systems. It took time for all of this to get worked out, the study indicated. The successful ...

Diabetics on high-fiber diets might need extra calcium, report UT Southwestern researchers

... digestive system, absorbing water and easing defecation. Calcium is a nutrient found in food that is absorbed by the body and then excreted in urine, feces or sweat. It is the most abundant mineral in the human body. Prior research at UT Southwestern has shown that a high intake of dietary fiber, ...

In many fungi, reproductive spores are remarkably aerodynamic

... of ascomycetes, the largest phylum of fungi. These fungi enter the sexual phase of their life cycle when they deplete nutrients in the deposits of feces or decaying matter where they reside. In these species, spores are held in fluid-filled sacs where pressure builds until they eventually explode, ...

Transporting broiler chickens could spread antibiotic-resistant organisms

... no effective barrier to prevent release of pathogens into the environment. Previous studies have reported that these crates become contaminated with feces and bacteria. The new study was conducted on the Delmarva Peninsulaa coastal region shared by Maryland, Delaware and Virginia, which has one of ...

Rapid test for pathogens developed by K-State researchers

... apart from another and determine antibiotic resistance. Traditionally, it takes days and multiple lab workers to screen a sample of soil, water or feces for just one pathogen. Additional time is then needed to look for resistance to antibiotics. The new test developed at K-State simultaneously looks ...

Novel fungus helps beetles to digest hard wood

... beetles. Next they fed ponderosa pine wood to the Pacific dampwood termite, an insect that typically eats only dead wood. Chemical analyses of feces from the two bugs indicated that they are able to alter the chemical structure of lignin by selectively adding or removing certain groups of ...

Primate's scent speaks volumes about who he is

... different scents. Other lemur species also have glands on their heads, chests and hands. Add to these scents the signals that can be conveyed in feces and urine, and there's a lot of silent, cryptic communication going on in lemur society. Wearing a scent-based nametag declaring one's genetics ...

Indiana U scientists uncover potential key to better drugs to fight toxoplasmosis parasite

... animals and birds, but it reproduces in cats, which can shed the parasite in their feces. Humans can be infected through contact with the infected feces or litter. People can also become infected by consuming undercooked meat. A vaccine to prevent infection in cats and livestock could prevent a ...

Fecal microorganisms inhabit sandy beaches of Florida

... the shoreline water is affected by bacterial run-off from the sand. This has implications for beach managers since the number of bacteria from feces (fecal bacteria) in the water is used to assess the presence of sewages. A high count of these indicator bacteria would require the beach to be ...

Ant parasite turns host into ripe red berry, biologists discover

... the parasite's eggs more broadly, since the eggs pass directly through into the feces. Ants become infected when they feed to ant larvae the bird feces containing parasite eggs. The nematodes hatch and migrate to the gaster of the ant pupae, where they mate. After the pupae become adults, the adults ...

American Chemical Society's Weekly PressPac -- Dec. 5, 2007

... of a new type of gold nanoparticle that destroys the parasite responsible for toxoplasmosis, a potentially serious disease acquired by handling the feces of infected cats or eating undercooked meat. Their so-called golden bullet could provide a safer, more effective alternative for treating the disease ...

Parasites' impact goes beyond host to affect ecosystem

... host. Shorebirds ?more prevalent on Appledore than on the mainland ?are the final hosts, contracting infection by eating infected fish, then in their feces excreting the eggs of C. lingua, which are in turn eaten by the snails. "The parasite’s life cycle is a really amazing strategy for an organism ...

Microbes compete with animals for food by making it stink

... part of the ecosystem, Hay said. "They are not passively waiting on the bottom of the marsh floor for the rest of the community to deliver feces and other wastes that are not useful to anybody else," he added. "They are also trying to grab what they can at the start." Hay hopes the ...

Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses

... technique works with viruses isolated from infected cells grown in a lab, and the next step is to study its use in biological samples such as blood, feces or nasal swabs. Tripp said preliminary results are so promising that the researchers are currently working to create an online encyclopedia of Raman ...

Poor athletic performance linked to vitamin deficiency

... pathways during exercise, the changes in the body's tissues resulting from training, an increase in the loss of nutrients in sweat, urine and feces during and after strenuous activity and the additional nutrients needed to repair and maintain higher levels of lean tissue mass present in some ...

Marine mammals are on the frontline of failing ocean health

... of death to the brain parasite, Toxoplasma, and ultimately to cats. "Before I started this project I didn't think about things like how much cat feces gets in to the environment - how what we dump on our lawns and sidewalks flows into streams to rivers and into the ocean," says Conrad. But with ...

Genetic study shows humans have pushed orangutans to the brink of extinction

... of a population began, its trajectory, and the original population size." For their study, the researchers collected hair from tree nests and feces found under nests or near orangutans encountered along the Kinabatangan River. Two hundred orangutans were identified using genetic markers called ...
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