We investigated the spontaneous tendency of dog puppies, kittens and wolf pups to match their behaviour to actions demonstrated by a human, in the absence of food reward. Based on dogs’ inherent sociality and domestication history, we predicted that the tendency to match human actions is more ...
heterozygosity was generally higher in dogs (Ho= 0.265 ± 0.032) than in wolves (Ho= 0.231 ± 0.025. However, a direct comparison between wolves and dogs should be treated with caution due to the possible ascertainment bias from the SNP array, mostly designed on dogs, although ...
They have only about 3% cones, compared to a human's 5%, so they can see better than humans in the dark. Dogs can see colors Dorottya Mathe // Shutterstock Dogs can see colors It's often claimed that dogs can't see color, or that they can't tell the difference between red and ...
A phylogeographic analysis of gene sequences important in determining body size in dogs, recently published in BMC Biology, traces the appearance of small body size to the Neolithic Middle East. This finding strengthens the association of this event with
Extant Canis lupus genetic diversity can be grouped into three phylogenetically distinct clades: Eurasian and American wolves and domestic dogs.1 Genetic studies have suggested these groups trace their origins to a wolf population that expanded during the last glacial maximum (LGM)1, 2, 3 and repla...
Compared to your drawing of the indigenous dogman (see pic at right) the musculature on the legs was even heavier. It was looking right at me. I felt it was aggressive and would defend itself viciously. “This wasn’t a dog. Or a wolf. It had canine features but it was something ...
“developmental constraint” has been challenged because marsupials have not always possessed limited diversity compared with placental mammals44, and do not appear to exhibit adaptive constraints on forelimb45,46or skull shape variation47. Nevertheless, despite these differences, the remarkable convergence ...
These results must be interpreted carefully. Sub-sample sizes are relatively small, and due to the maximum-variation rationale of choosing participants for this study, members of the sub-samples are not representative of that respective demographic group in the general population. Also, significant re...
Results: Our analyses show that domestic dogs exhibit a similar sequence of dental and skeletal maturity as the ancestral wolf. Although the absolute change of the age at attainment of sexual maturity is great in domestic dogs as compared to the wolf, the sequence of dental, skeletal, and ...
However, we did not find an enrichment in genes in the 190 regions with duplications in dogs compared to the whole set of 1,611 CNV regions (P = 0.519), while we found gene enrichment in the 150 regions with deletions (P < 0.001; Additional file 1: Figure S2) suggesting a ...