Jawbone fossils in Costa Rica It slot indicates that man's best friend may be by our side sooner than previously thought.If the researchers are proven to be correct Man's best friend may have gotten stomach scratches and food scraps from humans in America for nearly 12,000 years, at least.
That's what's suggested by a recent analysis of fossils of the same age. Fossils discovered in Costa Rica are jawbones of what scientists believe to be early domesticated dogs.Originally, this fossil was believed to come from a coyote that lived in the late Pleistocene.
The coyote is an early relative of the early domestic dogs,
which hunted large prey along with their human companions. But early coyotes had sharp jaws and teeth that differed from the samples the researchers analyzed.
We thought it was very strange that wolves existed in the Pleistocene, that was 12,000 years ago,” Costa Rican researcher Guillermo Vargas told AFP. Its teeth do not determine its survival.After analyzing and scanning the jawbone Researchers have found that
the 12,000-year-old artifact didn't come from wolves at all.
but from the dog The University of Oxford also proposes to test the jawbones of dogs that were recently analyzed with dates.Although domesticated dogs first arrived in Asia about 15,000 years ago,
they are the oldest dogs discovered in America so far. The remains were found in Alaska, dating to about 10,150 years ago.Zoologist Raul Valadez said if Costa Rica's jawbones were proven to be older than Alaskan remains.
It won't just mark the oldest example of a dog in America. It also means that humans are still in Central America longer than previously thought.Why? Because man's best friend has never been found anywhere other than our side.