The evolutionary history of Man is intimately linked to that of the dog, both biologically and culturally. The first clues ofdate back more than 30,000 years and the common association, in the register , between man and dog, dates back approximately 15,000 years. Many fossils of have already been discovered and allow us to understand the morphological evolution of the . However, knowledge of the factors that influenced the evolutionary trajectories from the first dogs to the current forms remains very fragmented.
domestication of the dog has occurred independently in several places around the world
Besides the lack of fossils, this knowledge is incomplete due to the fact that theof the dog occurred independently in several places in the world and that it was probably initiated according to different behaviors and objectives. A study conducted by an international research team was the subject of a about the morphological evolution of dogs in Croatia since the Neolithic.
Dogs to guard the flocks
The authors of this study inferred the height of dogs between about 8,000 (Neolithic and Stone Age) and 2,000 years ago (Roman period). The remains of more than fifty dogs mainly from Croatia but also from neighboring European countries were examined. The first Neolithic farmers arrived in Croatia from Anatolia (Asia Minor) and the Middle East andwhich was not already present in this region. The authors report that specimens of this newly imported breed weighed around 15 kilograms.
About two thousand years later, during the Bronze Age, the average weight ofhad increased by two kilograms while they reached the average weight of 24 kilograms during the Roman period. The authors suggest that larger and larger dogs were bred over time to protect livestock from predators. Sheep herds were indeed grazing at higher altitudes and were therefore probably more vulnerable to large predators such as bears and . There are also documents in which Romans give advice to breeders about . From these documents, it was estimated that the dogs could even reach the average weight of 32 kilograms and therefore probably rivaled today’s sheepdogs in weight.