How dogs don't ape
New research shows that dogs selectively imitate actions, adjusting to circumstances like human infants. The study found that dogs use their mouths instead of paws when the demonstrator's mouth is occupied.
Dogs
Articles tagged with Dogs
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Researchers identify gene that plays key role in size of dogs
A study published in Science found a mutation in the IGF1 gene that affects body-size differences among dog breeds and may also play a key role in determining human body size. The researchers analyzed DNA from over 3,000 dogs of different breeds to identify genes linked to size variations.
Why small dogs are small
Researchers have identified a piece of doggy DNA that reduces growth in small breeds, ensuring they stay small. The study found a haplotype in all breeds of small dogs, suggesting it is a major contributor to body size.
Dog DNA study yields clues to diverse size of breeds
A new study published in Science has identified a single gene that may determine whether dogs are big or small, providing insights into the diversity of breeds. The research team used over 3,200 dog DNA samples to pinpoint this major gene, which is thought to have resulted in the appearance of smaller dogs in the population.
Researchers identify gene involved in dog size
A study led by the National Human Genome Research Institute identified a key genetic variant associated with small size in dogs. The IGF-1 gene was found to play a strong role in regulating body size across various breeds, offering potential insights into skeletal body size programming in humans and disease susceptibility.
Chemist inventor 'sniffs' his way to prestigious $500,000 Lemelson-MIT Prize
Dr. Timothy M. Swager has invented amplified fluorescent polymers that can detect nitro aromatic molecules, a class of chemicals used in explosives. His molecular wire sensors have applications in healthcare, environmental monitoring and security.
Fashions change, but change is always the fashion, new research suggests
Researchers found that popularity lists for baby names, music, and dog breeds change at a steady rate, regardless of population size. The study suggests that innovation drives fashion change, with a small proportion of innovators influencing the majority through random copying.
Insights into osteosarcoma in cats and dogs may improve palliative care
Researchers identified a critical molecular pathway in osteosarcoma, finding it also present in cats and dogs. This discovery could lead to advances in palliative care for companion animals with skeletal tumors.
Man's best friend lends insight into human evolution
Research suggests that the ability of humans to use social cues in cooperative situations may have evolved since the human lineage split from chimpanzees. In contrast, domestic dogs display an innate ability to solve social problems without prior training. This capacity is thought to be linked to the process of dog domestication.
Winners of the 2006 AAAS Science Journalism Awards
The winners of the 2006 AAAS Science Journalism Awards were recognized for their exceptional reporting on Alzheimer's disease, climate change, and innovative research. Stacey Burling won for her compelling story on the life and death of an Alzheimer's patient, while Michelle Nijhuis was honored for her series on climate change in the A...
Dogs may be responding to psychological seizures, not epilepsy seizures
Researchers found that some dogs are responding to seizures caused by psychological conditions, rather than epilepsy. People with psychogenic seizures need psychiatric evaluation and treatment, not specialized training for epileptic seizures.
Lost dogs found more often than lost cats, study suggests
Researchers found that 71% of lost dogs were reunited with their owners, compared to 53% of lost cats. Identification tags or microchips played a crucial role in recovery. Posting signs and advertising in local newspapers also helped recover pets.
Pet owners are sick more often and exercise less than other working-aged people
A study of Finnish working-aged adults found that pet ownership is associated with a higher risk of illness and lower physical activity levels. Dog owners did exhibit increased physical activity compared to non-dog owners, however this was not enough to offset the negative health effects of pet ownership.
Sniffers show that humans can track scents, and that two nostrils are better than one
Researchers at UC Berkeley found that humans gain a performance advantage from cross-nostril comparisons when tracking scents. With training, humans can improve their accuracy significantly and nearly double their speed. This discovery challenges the common assumption that humans are poor smellers compared to other mammals.
Infants wheeze less in homes with multiple dogs
A study by the University of Cincinnati has found that infants living in homes with high levels of endotoxins and multiple dogs were more than two times less likely to wheeze. The researchers suggest that pet ownership may offer a protective effect against development of lower respiratory symptoms in young children.
New therapeutic hope for degenerative disc disease
Researchers found that embryonic cells from a dog's notochord can regenerate disc cartilage, providing new therapeutic options for degenerative disc disease. The study suggests that CTGF-secreting notochord cells protect non-chondrodystrophic dogs against the condition.
Fast test for low blood flow in dogs detects early heart trouble
Researchers have developed a fast and accurate test to track slowed blood flow in dogs, detecting early signs of blocked arteries. The 64-slice CT scanner can replace traditional tests like exercise stress testing and echocardiograms, providing a safe and non-invasive method to diagnose coronary disease.
USC research shows dogs and smog don't mix
A new study published in Environmental Health Perspectives found that dogs in the home can increase cough, phlegm production, and bronchitis responses in children with asthma. The researchers speculate that endotoxin from dog dander may be the cause of this increased response.
Contagious cancer in dogs confirmed; origins traced to wolves centuries ago
Researchers found that a form of cancer affecting dogs is spread through the transmission of tumor cells, with evidence pointing to its origins in wolves or closely related ancient dog breeds. The disease has been transmitted among dogs for at least two centuries and has adapted to evade immune responses.
Contagious canine cancer
A study by University College London researchers found that canine transmissible venereal tumour (CTVT) originated in a single wolf over 1,000 years ago and has since spread globally. The tumour cells are transmitted between dogs during sex, challenging current thinking about cancer.
Constant din of barking causes stress, behavior changes in dogs in shelters
A study found that constant barking in animal shelters can cause physical stress, behavioral responses, and anxiety. New designs, such as individual rooms with access to a play area, have been shown to reduce noise levels and promote social interaction among dogs.
Survey of animal shelters says dogs fare better than cats
The survey found that dogs received 16% fewer animals since 1996, while cat intake increased by nearly 20%, leading to a rise in cat euthanasia rates. In contrast, dogs saw a significant decrease in euthanasia rates and more adoptions, with 63,700 dogs adopted compared to 51,600 in 1996.
Master planners in brain may coordinate other areas' roles in cognitive tasks
Researchers identified three brain regions - dorsal anterior cingulate and left and right frontal operculum - as core components in creating task sets. These regions help determine which brain areas contribute to a cognitive task and when they play a part, according to the study published in Neuron.
'Bubble Bassets' cured of genetic disorder by in-vivo gene therapy technique
In-vivo gene therapy has successfully restored immune function in three out of four dogs treated for XSCID. The treatment approach eliminates the need for ex-vivo cell manipulation and culture, potentially reducing adverse side effects and improving long-term efficacy.
Modelling virtual dogs: It's a walk in the park!
A team of scientists has created a simple mathematical model to explain how dogs walk, which could help inform the design of quadruped robots and treatments for hip dysplasia. By comparing computer simulations with real-world observations, they found that dogs' walking patterns can be attributed to a passive stiff-limbed model.
Purdue project could help pets serve as disease watchdogs
Researchers at Purdue University have developed a national surveillance network using pet medical records to predict disease outbreaks in humans and animals. The program found correlations between flea and tick infestations and Lyme disease, as well as an increase in canine leptospirosis cases over the past decade.
Scientists in dogged pursuit of snow research embark on Arctic trek
Scientists embark on an Arctic trek with sled dogs to collect snow samples and validate satellite observations. The goal is to improve understanding of global snow cover and its impact on water resources, particularly in the American West where melting snow supplies 70% of western states' water supply.
Evolution in action: Why some viruses jump species
Researchers found that carnivore parvoviruses and the human B19 erythrovirus undergo rapid evolution when switching host species. This contradicts the assumption that DNA viruses exhibit slower mutation rates compared to their hosts and other DNA viruses.
Dog owners hide the truth from shelters about their pets' behavioral problems
Researchers found that shelter dogs with behavioral issues were more likely to be reported as aggressive or fearful when owners believed their responses would be shared with staff. Honest owner assessments can help shelters identify troubled dogs and provide better care for both animals and potential adopters.
Can dogs smell cancer?
A recent study published in Integrative Cancer Therapies found that dogs can detect breast and lung cancer with sensitivity and specificity rates of 88-97%. The trained dogs were able to identify cancers even in early stages, providing a potential reduction in uncertainty in cancer diagnosis.
A quality dog/owner relationship no help to storm-phobic canines
A new study finds that the quality of a dog-owner relationship has no impact on thunderstorm-phobic dogs' stress responses. However, dogs living with other dogs in the household exhibited less pronounced stress reactivity and faster recovery times.
How do boxers differ from poodles? Researchers collar genomes
A study comparing the genomes of boxers and poodles identified significant genetic variations that could be used to study diseases, development, and behaviors in dogs. The research also sheds light on evolutionary influences shaping mammalian genomes.
Researchers publish dog genome sequence
The published dog genome sequence offers insights into genetic factors contributing to human health and disease. The analysis revealed that dogs share common genetic elements with humans and mice, highlighting the importance of understanding the evolution of genomes.
Dog genome sequence and analysis published in Nature
The study unlocked genetic variation among dog breeds, revealing ~2.5 million individual genetic differences among breeds that can be used to locate the genetic contributions to physical and behavioral traits. The analysis also found evolutionary conservation with humans, highlighting regions of the human genome that are highly preserv...
NC State scientist assists in cracking code of dog genome
Researchers have successfully sequenced the canine genome, revealing genetic similarities with humans that could help identify disease-causing genes. The breed-specific sequencing project aims to develop new cancer treatments by identifying genetic changes in individual dog breeds.
Scientists fetch useful information from dog genome publications
Researchers harness dog genome data to study genetic diseases, breed characteristics, and skeletal variation. The findings highlight the dog's potential as a valuable model organism in genetics and medical research.
Edinburgh vet's bid to cut deaths from rabies in Africa
Dr Cleaveland's project seeks to eliminate rabies by targeting its primary source: dogs. The research also sheds light on the role of wildlife in transmitting diseases between species.
Dogs ease anxiety, improve health status of hospitalized heart failure patients
Researchers found that a 12-minute visit with dogs significantly lowered blood pressure, released less harmful hormones, and reduced anxiety among hospitalized heart failure patients. This study demonstrates the benefits of animal-assisted therapy as an adjunct to medical treatment for these patients.
Trained wasps may be used to detect bombs, bugs, bodies and more
Researchers have developed a prototype device using trained Microplitis croceipes wasps to detect target odors, including explosives and toxic fungi. The device, called Wasp Hound, can be used for various applications, such as detecting plant diseases, chemical odors associated with human diseases, and hidden bodies.
Candidate hookworm vaccine shows benefits in animal study
A new vaccine targeting the dog hookworm has shown significant benefits in animal studies, reducing hookworm burdens and fecal egg counts. The vaccine protects dogs from severe outcomes like blood loss and anemia caused by the parasite.
Virtual animal shelters – How the Internet is transforming the experience of pet adoptions
The Internet enables organizations to function as virtual shelters without physical locations, allowing for pre-screening and coordination of adoption events. Descriptive online ads educate potential owners about endearing traits, while interactive messages narrow the selection process.
Infectious disease expert warns of spread of Rocky Mountain spotted fever
Rocky Mountain spotted fever, a bacterial disease caused by Rickettsia rickettsii, can be effectively treated with specific antibiotics if caught early. Symptoms include body-wide aches, headache, sudden high fever, sore throat, and nausea, often accompanied by a telltale spotty rash.
Visceral leishmaniasis: Successful vaccine trial in dogs
A new canine vaccine has shown complete protection against visceral leishmaniasis in a successful trial, with laboratory experiments confirming the activation of immune cells to eliminate parasites. The vaccine uses antigen proteins excreted by the parasite and has potential for reducing transmission to humans.
Object recognition improves when other objects appear in the same orientation
Researchers found that recognizing familiar objects is easier when they appear at the same angle, as this allows for temporary adjustments to the coordinate system. This can lead to improved recognition of misoriented objects, such as a dog shown in the same orientation as another object.
Scientists and the UK Kennel Club work together for healthier dogs and people
Researchers are using the UK Kennel Club's extensive breed records to identify genetic variations in diseased and healthy dogs. The study aims to improve nutrition and veterinary drugs for dogs, while also providing insights into human diseases.
Baseball food and drink: Healthy chemistry scores a surprise hit
Researchers found that sunflower seeds release a compound that may lower blood pressure, while moderate beer drinking reduces heart attack risk. Sauerkraut contains anti-cancer compounds, and onions help prevent bone loss. Meanwhile, regular hot dogs taste better than low-fat ones due to slower-releasing aroma compounds.
Technique provides new look on response of diseased canine heart
Researchers used a new microarray technology to analyze the genes of healthy and diseased dogs, identifying 167 genes that may play a role in canine dilated cardiomyopathy. The study sheds light on the heart's response to disease and offers hope for future treatments.
New hope for treating heart rhythm irregularity that often follows surgery
Researchers at Washington University School of Medicine found that inflammation is the cause of postoperative atrial fibrillation, a rapid and irregular twitching of the upper chambers of the heart. Anti-inflammatory therapy may prevent or lessen this condition by increasing uniformity of electrical impulses in the atria.
Dogs get back in the action: New pet food improves mobility and quality of life for dogs
A new pet food, Prescription Diet Canine j/d TM, improves dogs' quality of life by enhancing joint health. With a unique formula containing EPA, glucosamine, and L-carnitine, this food helps dogs run better, play better, and experience less stiffness.
Why are coyotes getting more aggressive?
A five-year study aims to investigate why coyotes are becoming more aggressive in urban and suburban areas of New York state, with researchers seeking ways to prevent conflicts with humans. The study will also survey public attitudes and behaviors relating to coyotes, as well as develop methods to induce fear without harm.
Dogs and robots share NIST special test arena
NIST's special test arena is used to train bomb and drug sniffing dogs as well as robotic rescue systems. The arenas provide a challenging environment for dogs to find hidden explosives or narcotics, while robotics experts observe police techniques.
Gene therapy completely corrects hemophilia in laboratory animals
A breakthrough in gene therapy has successfully corrected hemophilia in laboratory animals by producing a normal level of clotting factor activity and preventing bleeding incidents.
From gene discovery to preventing eye disease in retinitis pigmentosa
Researchers find that moderate light exposure causes complete retinal degeneration within a month, but lower levels cause slower and reversible damage. This study provides new insights into the interaction of genetics and environment in causing eye disease and suggests potential treatments for preventing blindness.
Cardiologist to testify at FDA hearing: Animal tests implicated in Vioxx tragedy
A cardiologist will testify at an FDA hearing on the implications of animal tests in approving COX-2 inhibitors like Vioxx. The report reveals that these drugs had a heart-protective effect in mice and other animals, contrary to their human performance.
Diet, exercise, stimulating environment helps old dogs learn
A two-year study found that older beagles performed better on cognitive tests when fed a balanced diet with fruits and vegetables, exercised regularly, and provided stimulating environments. The combination of these interventions showed the most significant improvements in brain function.
Multiple therapies curb declining ability to learn with age
Researchers found that combining behavioral enrichment and antioxidant supplementation significantly improved learning abilities in senior dogs. The study suggests similar benefits may be attained in humans due to biological and behavioral parallels between species.
Research points to new theory driving evolutionary changes
Researchers at UT Southwestern Medical Center propose a new theory explaining the rapid evolution of species and their physical variations. They found that tandem repeat sequences in genetic code can lead to significant morphological changes, driving evolutionary changes and variability in appearance among individual members of a species.
Purdue research offers hope for canine, human spinal injuries
A PEG injection can prevent most dogs from suffering permanent spinal damage after injury, allowing nerve cells to heal themselves. Researchers found that nearly 75 percent of treated dogs resumed a normal life.
UCLA study points to evolutionary roots of altruism, moral outrage
A UCLA study uses evolutionary game theory to model human behavior in small social groups, finding that cooperation in the context of public goods can be sustained when freeloaders are punished through social exclusion. This suggests a possible explanation for the evolution of altruism and moral outrage.
New study shows people and pets can succeed together in fighting obesity epidemic
A 12-month study found that people and dogs lost an average of 11 pounds and 12 pounds respectively, with the combined dog/owner group showing higher participation rates. The program improved quality of life through increased exercise and strengthened human-animal bonds.