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Archaeologists in Mexico City have found the skeletons of 12 dogs all buried together more than 500 years ago. The discovery in the Aztec capital of Tenochtitlan is the first not associated with a building or human burial. Credit: Associated Press The Aztecs placed a high honor on dogs, and believed that they continued to serve their masters after death. The dogs would act as guides for the souls of the deceased, taking them through the underworld to Mictlan, the place of the dead. The remains were in what appeared to be a dog cemetery, about 4 to 5 feet below the current street level. The skeletons were well preserved and mostly intact. The excavation revealed no discernible pattern to...

A new breed of cat called a Lykoi, which looks like a werewolf and acts like a dog, is now prowling the Earth, the Daily Mail reports. The Lykoi cat, named after the Greek word for "wolf," originates from a genetic mutation in a domestic shorthair cat that stops the growth of a full fur coat. This breed has no hair around the eyes, nose, ears or mouth. It also has the ability to shed its hair and go bald. The gene used to create this breed is a "natural mutation in domestic cat populations," said Sweetwater, Tenn., resident breeder Johnny Gobble. "There was no human intervention to create the cat. We are simply using the genetics of natural processes." Gobble, his wife and fellow...

For the second time in the last year, a wild beaver has been caught on camera in England. These sightings are the first instances in 500 years where a beaver has been spotted in the British wilderness. This second round of footage shows a beaver chewing on a tree near the River Otter in Devon, England, as reported by the Daily Mail. Once native to England, the beaver has been hunted to near extinction in the country. After hearing of reported sightings and seeing possible beaver bite marks on some trees, retired environmental scientist Tom Buckley set up photographic equipment along the banks of the River Otter in hopes of catching the semiaquatic rodent on camera. "For me it posed the...

A widely held belief is that dogs evolved from gray wolves, but a new study finds that the common ancestor of dogs and wolves went extinct thousands of years ago. Credit: Flickr What's more, the extensive DNA analysis -- published in the latest PLoS Genetics -- found that dogs are more closely related to each other than to wolves, regardless of their geographic origin. The genetic overlap seen today between dogs and wolves is likely then due to interbreeding after dog domestication. "The common ancestor of dogs and wolves was a large, wolf-like animal that lived between 9,000 and 34,000 years ago," Robert Wayne, co-senior author of the study, told Discovery News. "Based on DNA evidence,...

WASHINGTON - A 375 million-year-old fossil has shed new light on the theory of evolution, challenging the widespread view that large hind appendages first appeared after vertebrates transitioned from the water to land. Credit: Flickr/Sarah Pierce A report published in the Proceedings of the National Academy of Sciences said the well-preserved pelves and partial pelvic fin of a Tiktaalik roseae -- which looked like a cross between a crocodile and a fish -- indicated that hind legs actually began as hind fins. First discovered in 2004, Tiktaalik roseae are the best-known transitional species which bridged the leap between fish and land-dwelling tetrapods. Studies of the species had...