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Dog appeasing pheromone (DAP), sometimes known as apasine, is a mixture of esters of fatty acids released by the sebaceous glands in the inter-mammary sulcus of lactating female dogs. It is secreted from between three and four days after parturition and two to five days after weaning. [ 1 ]
This list of dog breeds includes both extant and extinct dog breeds, varieties and types. A research article on dog genomics published in Science/AAAS defines modern dog breeds as "a recent invention defined by conformation to a physical ideal and purity of lineage". [1] According to BigThink, over 40% of the world's dog breeds come from the ...
Most modern research on dog cognition has focused on pet dogs living in human homes in developed countries, a small fraction of the dog population. Dogs from other populations may show different cognitive behaviors. [17] Breed differences possibly could impact on spatial learning and memory abilities. [18]
If a dog's tail is wagging freely and vigorously, this displays a friendly or playful mood. [12] [15] Similar to ear position, tail positions and movements may be mostly or completely ineffective in dog breeds with short, tightly curled, or docked tails. [16] The tail of a dog can communicate a number of emotions and intentions. [17]
Coren's book presents a ranked list of breed intelligence, based on a survey of 208 dog obedience judges across North America. [10] When it was first published there was much media attention and commentary in terms of both pros [11] and cons. [12] Over the years, Coren's ranking of breeds and methodology have come to be accepted as a valid description of the differences among dog breeds in ...
There are some behaviors that all dogs do that charm us humans to know end. I have a dog, and I bet I have more pictures of her on my phone than I do of my kids!
A drawing by Konrad Lorenz showing facial expressions of a dog - a communication behavior. X-axis is aggression, y-axis is fear. Dog behavior is the internally coordinated responses of individuals or groups of domestic dogs to internal and external stimuli. [1] It has been shaped by millennia of contact with humans and their lifestyles.
A mongrel, mixed-breed dog or mutt is a dog that does not belong to one officially recognized breed but can be a mix of two breeds and is not the result of intentional breeding. [ 59 ] In the United States, the term mixed-breed is a favored synonym over mongrel among individuals who wish to avoid negative connotations associated with the latter ...