Dogs News -- ScienceDaily Veterinary research and news on dogs as companions, canine health, wolf pack behavior and more. If it is news about dogs, you will find it here! Scientists discover a hidden ?ID card? in cat urine Cats may identify one another through a surprisingly durable chemical ?calling card? made from 13 unusual fatty acids in their urine. The compounds appear linked to mysterious fat droplets in the kidneys and may represent a scent-recognition system shared across the cat family. Crocodiles are famous for finding their way home. These ones didn?t Captive-raised saltwater crocodiles released into Bangladesh?s Sundarbans surprised scientists by settling into the wild rather than trying to return to their breeding facility. The result suggests that releasing larger, mature captive crocodiles could help restore depleted populations more successfully than relying only on vulnerable hatchlings. Dogs may hold surprising clues to human longevity Dogs and humans may have more in common when it comes to aging than scientists realized. Researchers with the Dog Aging Project found that patterns of small molecules in dogs? blood were linked to longer or shorter lifespans in remarkably similar ways to those seen in people. These metabolic ?fingerprints? could offer clues about the biological processes that drive aging, including metabolism, inflammation, and cellular stress. Scientists tracked 4,500 animals and found a surprising human effect Scientists tracking thousands of animals found that our physical presence can reshape where wildlife moves and lives, sometimes as strongly as roads, cities, and other human development. Because different species reacted in very different ways, conservation efforts may need to become much more targeted. Bird flu is spreading. Your backyard feeder could make it worse Backyard bird feeders could become unexpected hotspots for H5N1 as Australia?s bird flu outbreak spreads, bringing species together in ways that rarely occur naturally. Experts say stopping feeding is safest, while smaller amounts of food, no hand-feeding, and careful cleaning can reduce the danger. Scientists find hidden ?highways? guiding animal evolution A sweeping analysis of thousands of animal genomes suggests that chromosomes do not evolve randomly but instead follow a limited number of irreversible ?evolutionary highways.? These one-way genetic changes preserve clues to more than 600 million years of animal history and could even help researchers explore where evolution may head next. Dogs can tell fear from sadness ? and scientists saw it in their brains Dogs may understand our emotions more deeply than scientists realized. Brain scans show that happy human faces activate regions in dogs linked to higher-level processing and reward, suggesting that smiles carry special emotional significance for them. For 15,000 years, humans and dogs have been changing each other Dogs have been shaping?and being shaped by?humans for about 15,000 years, evolving from early partners of hunter-gatherers into an astonishing range of specialized companions. Across the globe, they adapted alongside people to wildly different environments and needs, from powerful Arctic sled dogs and agile rainforest hunters to high-altitude dogs with genetic traits for surviving thin air. Some were even bred for wool, while others played important spiritual or ceremonial roles. Hidden genetic diversity helped inbred brown tree snakes conquer guam A notorious snake invasion that devastated Guam?s native birds may have succeeded because the reptiles carried hidden genetic advantages. Using advanced long-read DNA sequencing, researchers uncovered more than 19,000 large genetic differences in brown tree snakes, many concentrated in genes tied to immunity and smell. This overlooked diversity may have helped a population founded by only a few snakes survive inbreeding, adapt to a new environment, and multiply to extraordinary densities. Scientists trace the shocking origin of human eyes to an ancient ?cyclops? Researchers say a tiny one-eyed ancestor that lived nearly 600 million years ago may have shaped the evolution of every vertebrate eye, including our own. They also found that its ancient median eye lives on today as the pineal gland, which helps synchronize our sleep with daylight. 5,000-year-old wolves found on remote island rewrite what we know about domes... Scientists discovered ancient wolves on a tiny Baltic island where they could only have been brought by humans, suggesting an unexpectedly close relationship between people and wolves thousands of years ago. Evidence indicates the wolves were fed, possibly cared for, and may even have been managed or selectively bred long before modern ideas of domestication. From pet to pest, goldfish can wreck entire ecosystems A new study reveals that goldfish can do far more than survive in the wild?they can fundamentally reshape freshwater ecosystems. Researchers found they cloud water, damage food webs, and hurt native fish populations, sometimes triggering major ecological shifts. Yellowstone wolves may not have reshaped the national park after all One of the most celebrated claims about Yellowstone?s wolves is facing a major challenge. Scientists say the study behind the famous trophic cascade story relied on flawed methods that overstated the ecological impact of wolf recovery. Their reanalysis found no evidence for a dramatic, park-wide surge in willow growth. Instead, the effects appear smaller and vary from place to place. The deadly tapeworm spreading across America has reached the Pacific Northwest A potentially dangerous tapeworm linked to severe, cancer-like disease has now been found in the Pacific Northwest, marking its first detection in wild animals along the U.S. West Coast. Researchers discovered the parasite, Echinococcus multilocularis, in 37% of coyotes tested around Puget Sound?a surprisingly high rate for a region where it had never been reported until recently. Plant believed extinct for 60 years suddenly reappears A random photo snapped in the Australian outback has led to the rediscovery of a plant thought extinct for nearly 60 years ? proving that ordinary people with smartphones are quietly transforming science. After bird bander Aaron Bean uploaded pictures of a strange shrub to iNaturalist, botanist Anthony Bean immediately recognized it as Ptilotus senarius, a rare species missing since 1967.

We have a total of 8380 links in our database
Powered by ©

© 2006 - PawSitesOnline.com | Page: Buy Puppies for Sale.html