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Tag: "animals" at biology news

Revueltosaurus skeleton unearthed at Petrified Forest upsets dinosaur tale

...they're dinosaurian as well. If the South American animals are indeed ornithischians, then it argues that the...y ornithischians were thought to have evolved into animals such as the stegosaurs of the Jurassic and the frilled and duck-billed dinosaurs of the Cretaceous, ...

Agilent Technologies introduces high-capacity human protein removal system for proteomics research

...they're dinosaurian as well. If the South American animals are indeed ornithischians, then it argues that the...y ornithischians were thought to have evolved into animals such as the stegosaurs of the Jurassic and the frilled and duck-billed dinosaurs of the Cretaceous, ...

Fungus-farming termites descend from an African rain forest Eve

...urable areas to which most domesticable plants and animals were native. From the homelands of domestication, agriculture has later spread to other regions, including to much more unfavourable areas. This occurred either by the adoption of an agricultural lifestyle by local hunter-gatherers, or, and probably ...

Certain fish have a special mating preference

...That is, most evolutionists have believed that for animals with internal fertilization -- like the livebearing fish Langerhans studies which don't lay eggs-- selection acting within the female's body that biases fertilization toward males with a particular genital morphology has been largely responsible for ...

IMF Launches World’s First DNA Database for Myeloma Patients

...That is, most evolutionists have believed that for animals with internal fertilization -- like the livebearing fish Langerhans studies which don't lay eggs-- selection acting within the female's body that biases fertilization toward males with a particular genital morphology has been largely responsible for ...

Combination therapy leads to partial recovery from spinal cord injury in rats

...lled myelin can lead to functional improvements in animals with spinal cord injury. Previous studies have shown that the loss of myelin around nerve fibers contributes to the impaired function after a spinal cord injury. However, until now it has not been clear whether promoting new myelin growth in the spin...

Small worm yields big clue on muscle receptor action

...s localized at the synapse and start to mutagenize animals to figure out what makes that receptor stay or make it to the synapse," she added. Richmond said the finding might have direct relevance to humans because the ACR-16 receptor is very similar to the alpha-7 nicotinic receptor in the human brain. ...

Chickadees can help humans get their bearings

...id University of Alberta researchers discover that animals zig when they were only supposed to zag? A little ...birds contradicting prior research that showed how animals navigate. This study is the first to reveal a different pattern. Previously, only animals that had b...

Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees

...mps is not just important in its own right. These animals are also flagship species, important symbols for v... and others who might handle carcasses of infected animals at risk. "If we find ways to protect apes from the Ebola virus, we also will protect humans," the a...

Scientists reveal how disease bacterium survives inside immune system cell

...is transmitted by ticks and causes disease in both animals and humans," Dr. Borjesson says. Neutrophils, which make up about 60 percent of all white blood cells, are the largest cellular component of the human immune system -- billions exist inside each human. Typically, neutrophils ingest and then kill har...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

... can hatch up to 30 percent earlier if attacked by animals such as snakes or wasps. At her open-air laboratory at the Gamboa Field Station in Panama, part of the Smithsonian Tropical Research Institute, Warkentin, an assistant professor of biology at BU, used parrot snakes and cat-eye snakes, to find which ...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...be vast and uniform. But beneath the surface, tiny animals called zooplankton are swept into clusters and pat...f technology to track the motions of the miniscule animals in the sea. Now, an international team of scientists from Israel, the United States and Germany led...

Caloric restriction won't dramatically extend life span in humans: UCLA research

...had an unpleasant demeanor, unlike the more docile animals given more "normal" amounts of food, Phelan said. "I think about food all the time," he said. "I'm not going to be so extreme that I become the mouse that bites anyone who touches me. My advice about food is be sensible, and don't be a fanatic about...

Discovery of an American salamander where it shouldn't be: Korea

...reathe through moist skin. Because these nocturnal animals live, breed and lay their eggs on land, they typic...n their lives." He noted that numerous plants and animals in Asia and eastern North America share an evolutionary connection, suggesting some past geographic ...

Biologists determine genetic blueprint of social amoeba

...of life. "It is more closely related to fungi and animals than we had previously thought," says Adam Kuspa, ...ganisms. "The cells which gave rise to plants and animals had more types of genes available to them than are presently found in either plants or animals," exp...

Bees, Brains and Addiction

...rful influence on the behavior of humans and other animals that a rat will work so tirelessly when it is rewarded with electrical stimulation to this region of the brain that it can forgo eating and ultimately starve to death. The neurobiology and evolutionary basis of the brain circuitry that processes inf...

How monarch butterflies are wired for navigation

...oximately 24 hour activity and metabolic cycles of animals from the simplest insects to humans. Reppert and his colleagues found that key genes responsible for the clock's molecular "ticks" were expressed in a brain region called the dorsolateral protocerebrum. Using tracer molecules, they were surprised to ...

Scientists turn tobacco against cancer

...heir immune systems, and subsequently injected the animals with the plant-derived antibodies. Then they watched for tumor growth for as many as 40 days. The researchers found that tumor growth was inhibited in a similar manner to that of mammalian-made monoclonal antibodies, Dr. Ko says. “These results ind...

Scientists find microRNAs regulate plant development

... Arabidopsis. There are many AGO1-like proteins in animals and other eukaryotes as well, indicating that the RNA-induced silencing complex is of ancient evolutionary origin, and that microRNA-mediated regulation of gene expression is shared among many eukaryotes. Arabidopsis ago1 mutants lacking the AGO1 pro...

Neandertal femur suggests competition with hyenas and a shift in landscape use

...icates that humans processed carcasses of the same animals as the hyenas, with some animal bones showing both cut marks from human tools and tooth marks from hyenas. Additionally, the human femur was gnawed by carnivores, probably hyenas. This shows that close competition for food and space persisted through...

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