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Preview: Brightsurf Science News :: Animals News

Animals Current Events and Animals News from Brightsurf



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Anesthetics have the same effects on plants as they have on animals and humans

Mon, 11 Dec 17 00:08:10 -0800

A new study published in Annals of Botany has shown that plants react to anesthetics similarly to the way animals and humans do, suggesting plants are ideal objects for testing anesthetics actions in future.



Radar tracking reveals how bees develop a route between flowers

Mon, 11 Dec 17 00:09:40 -0800

As bees gain foraging experience they continually refine both the order in which they visit flowers and the flight paths they take between flowers to generate better and better routes, according to researchers at Queen Mary University of London.



Unique pattern of brain inflammation may explain neurocognitive impairment in HIV patients on antiretroviral drugs

Fri, 08 Dec 17 00:12:00 -0800

Almost half of combination antiretroviral therapy (cART)-treated HIV patients experience some degree of neurocognitive impairment (neuroHIV). To search for underlying pathology, scientists analyzed the brains of monkeys infected with simian immunodeficiency virus (SIV) then treated with cART. As reported in a new study in The American Journal of Pathology, the majority of the SIV-infected macaque brains showed signs of unusual lymphocyte-dominant inflammation, suggesting that persistent neuroinflammation may underlie cognitive problems in cART-treated HIV patients.



530-million-year-old fossil has look of world's oldest eye, study suggests

Thu, 07 Dec 17 00:10:30 -0800

A 530-million-year-old fossil contains what could be the oldest eye ever discovered, a study reveals.



It's all in the ears: Inner ears of extinct sea monsters mirror those of today's animals

Thu, 07 Dec 17 00:00:30 -0800

A new study led by Oxford University Museum of Natural History has revealed that an extinct group of marine reptiles called sauropterygians evolved similar inner ear proportions to those of some modern day aquatic reptiles and mammals. The research is published in Current Biology today.



Evolution: It's all in the ears

Thu, 07 Dec 17 00:00:20 -0800

A new study by a team of international experts, led by Dr James Neenan, a Postdoctoral Fellow at the Evolutionary Studies Institute at Wits University in South Africa, has revealed that a completely extinct group of marine reptiles called sauropterygians evolved similar inner ear proportions to those of some modern day aquatic reptiles and mammals.



Electrical stimulation in brain bypasses senses, instructs movement

Thu, 07 Dec 17 00:00:10 -0800

The brain's complex network of neurons enables us to interpret and effortlessly navigate and interact with the world around us. But when these links are damaged due to injury or stroke, critical tasks like perception and movement can be disrupted. New research is helping scientists figure out how to harness the brain's plasticity to rewire these lost connections, an advance that could accelerate the development of neuro-prosthetics.



Freeze and flee: The costly 'escape' response of narwhals

Thu, 07 Dec 17 00:05:20 -0800

East Greenland narwhals exhibit both 'freeze' and 'flee' responses when escaping from threats, researchers report.



New study funded by Morris Animal Foundation demonstrates loss of drug potency

Thu, 07 Dec 17 00:08:00 -0800

Drugs work best when their potency remains stable or consistent, but a new study funded by Morris Animal Foundation shows a commonly compounded antimicrobial drug used in veterinary medicine may be losing potency over time. The study recently was published in the Journal of the American Veterinary Medical Association.



Separated since the dinosaurs, bamboo-eating lemurs, pandas share common gut microbes

Wed, 06 Dec 17 00:10:30 -0800

A new study finds that bamboo lemurs, giant pandas and red pandas share 48 gut microbes in common -- despite the fact that they are separated by millions of years of evolution.



Unique field survey yields first big-picture view of deep-sea food webs

Wed, 06 Dec 17 00:00:20 -0800

A new paper by MBARI researchers Anela Choy, Steve Haddock, and Bruce Robison documents the first comprehensive study of deep-sea food webs, using hundreds of video observations of animals caught in the act of feeding off the Central California coast. The study shows that deep-sea jellies are key predators, and provides new information on how deep-sea animals interact with life near the ocean surface.



Combination strategy could hold promise for ovarian cancer

Tue, 05 Dec 17 00:03:30 -0800

Johns Hopkins Kimmel Cancer Center researchers demonstrated that mice with ovarian cancer that received drugs to reactivate dormant genes along with other drugs that activate the immune system had a greater reduction of tumor burden and significantly longer survival than those that received any of the drugs alone.



Obesity prevented in mice fed high-fat diet

Tue, 05 Dec 17 00:05:40 -0800

Washington University researchers activated the Hedgehog protein pathway in the fat cells of mice. After eight weeks of eating a high-fat diet, mice that had been engineered with genes to activate the pathway didn't gain weight, but control animals whose Hedgehog pathways were not activated became obese.



Seeing isn't believing: Penn biologists show how to shut off hunger 'alarm system'

Tue, 05 Dec 17 00:11:00 -0800

According to a new study from the University of Pennsylvania, ingesting calorie-containing food is the primary way to calm the activity of a group of neurons responsible for driving an animal to eat. Targeting these neurons could provide a strategy to treat obesity.



Worm genomes reveal a link between ourselves and our distant relatives

Mon, 04 Dec 17 00:02:00 -0800

Researchers from the Marine Genomics Unit at OIST, in collaboration with Okayama University, have decoded two worm genomes and found that they have several genetic similarities with the vertebrates.



Evolution: In the beginning there was the sponge

Fri, 01 Dec 17 00:04:20 -0800

Which group of animals evolved first? This problem has become a bone of contention among biologists. An international research team is now confident that the definitive answer is at hand: Sponges appeared before comb jellies.



When Listeria monocytogenes goes to sleep....

Fri, 01 Dec 17 00:04:00 -0800

A serious infection of dietary origin that is caused by the Listeria monocytogenes bacterium, listeriosis is associated with severe clinical symptoms and a high mortality rate in individuals whose immune system is weakened. INRA scientists, working in collaboration with their colleagues at the Institut Pasteur, have demonstrated the novel capacity of L. monocytogenes to generate dormant intracellular forms that could be harboured, unsuspected, by their host. These findings are published on Nov. 30, 2017 in PLoS Pathogens.



How blood-sucking insects find dark-coated cattle in the dark

Thu, 30 Nov 17 00:15:30 -0800

Last year, biologist Susanne Åkesson at Lund University in Sweden, together with researchers in Hungary, received the Ig Nobel Prize in Physics. The prize was awarded to them for their research showing that dark-coated horses suffer more from blood-sucking horseflies compared to their white counterparts. Now, the researchers know why animals with a dark, smooth coat are particularly vulnerable -- even in a dark environment.



Scallop eyes mirror reflecting telescopes, with sophisticated optical properties

Thu, 30 Nov 17 00:08:10 -0800

Researchers have obtained a detailed view of a scallop's visual system -- a sophisticated arrangement of up to 200 eyes they say is strikingly similar to a reflecting telescope.



Caught in the act: Papillomaviruses promote non-melanoma skin cancer

Thu, 30 Nov 17 00:06:50 -0800

UV radiation has been known for a long time to be a risk factor for the development of skin cancer. Simultaneous infection with human papillomaviruses (HPV) has also been suspected to promote skin cancer, particularly in organ transplant recipients. Scientists from the German Cancer Research Center (DKFZ) have now been able to show for the first time in a natural system that papillomaviruses associated with UV light promote the development of non-melanoma skin cancer.



Getting a better handle on methane emissions from livestock
Cattle, swine and poultry contribute a hefty portion to the average American's diet, but raising all this livestock comes at a cost to the environment: The industry produces a lot of methane, a potent greenhouse gas. Just how much gas the animals release, however, is the subject of debate. Now, one group reports in ACS' journal Environmental Science