The evolution of domestic dogs occurred much later than previously thought, study findsChris Middlebrooks (Author) Published Date : Feb 09, 2015 08:41 ET
According to a recent study, it has been found that dogs have been around for almost as long as we would have thought. This study reflects the appearance of domestic dogs to have been around 15,000 years later than previously thought.
This discovery pursues reclassifying the 2 fossil skulls, one of them aging more than 30,000 years. These skulls were the foundation on which placed the domesticating dog to an era when early humans were hunting still around.
A 3D analysis of the skulls demonstrated that those actually belonged to wolves, and not the earliest dogs as speculated in previous researches, as stated by a research team in the Nature Journal Scientific Reports.
They also said that this indicates the earliest fossil evidence for domestic dogs go back around 15,000 years ago, an era when humans just started on civilization and farming.
Scientists have been eager to put a collar on the earliest domesticated dog, said biologist and study co-author Abby Drake of Skidmore College, New York.
Unfortunately, their analyses weren't sensitive enough to accurately determine the identity of these fossils.
Drake and his team had scanned and utilized 3D visualization software to observe the shape and size of the skulls. The data along with measurements have been compared with skulls of dogs and wolves of both modern and ancient times.
This procedure helped the team to acknowledge slight morphological dissimilarities between dogs and wolves like the eye cavity direction, the angle between the forehead and the
Our study provides a new and more accurate method for determining if a fossil is a wolf or a dog, Drake said, adding the findings demonstrated that other measurements used until now are extremely inaccurate.
We were able to determine if a skull was from a dog or wolf with 96 per cent accuracy, she said.
Numerous scientists think that dog domesticating initiated around the time ancient wolves began to scavenge on waste areas around human civilizations.
It is guessed that the dog has divided from the wolf about seven thousand to thirty thousand years ago.
Comparatively not so long so, let s say 200 years give or take a little, that the first breeds and their standards were establish. Ever since then there has been an explosion in the diversity of dogs.
The dog was possibly the first animal to be domesticated by Man and this was a major standpoint in the progression of modern human civilization.
People are inherently interested in dogs and we have influenced their evolution, Drake said of the motivation for the research.
They are such a part of our lives. Knowing when domestication of dogs took place in the course of human history is important to our story and theirs.
The evolution of domestic dogs occurred much later than previously thought, study finds