News tagged with dogs

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11,000-year-old living dog cancer reveals its secrets

Scientists have sequenced the genome of the world's oldest continuously surviving cancer, a transmissible genital cancer that affects dogs. This cancer, which causes grotesque genital tumours in dogs around ...

Jan 23, 2014
popularity 4.7 / 5 (11) | comments 1 | with audio podcast

Gene related to fat preferences in humans found

A preference for fatty foods has a genetic basis, according to researchers, who discovered that people with certain forms of the CD36 gene may like high-fat foods more than those who have other forms of this gene.

Feb 03, 2012
popularity 5 / 5 (1) | comments 1 | with audio podcast

Dog's epigenome gives clues to human cancer

The bond between humans and dogs is strong and ancient. From being the protector of the first herds in a faithful pet, dogs and people share many aspects of life. The relationship between the two species ...

Oct 02, 2014
popularity 4 / 5 (6) | comments 0

Study shows dog DNA can help human cancer patients

(Medical Xpress)—Using genomic analysis to study cancer in dogs can help develop new therapies for humans with cancer, according to a proof-of-concept study led by the National Cancer Institute (NCI) and the Translational ...

Mar 18, 2014
popularity 4.5 / 5 (2) | comments 0

Dog

The dog (Canis lupus familiaris, pronounced /ˈkeɪ.nis ˈluːpəs fʌˈmɪliɛəris/) is a domesticated subspecies of the Gray Wolf, a member of the Canidae family of the order Carnivora. The term is used for both feral and pet varieties. The domestic dog has been one of the most widely kept working and companion animals in human history. Amongst canine enthusiasts, the word "dog" may also mean the male of a canine species, as opposed to the word "bitch."

The dog quickly became ubiquitous across culture in all parts of the world, and was extremely valuable to early human settlements. For instance, it is believed that the successful emigration across the Bering Strait might not have been possible without sled dogs. Dogs perform many roles for people, such as hunting, herding, protection, and, more recently, assisting handicapped individuals. Currently, there are estimated to be 400 million dogs in the world.

Over the 15,000 year span that the dog had been domesticated, it diverged into only a handful of landraces, groups of similar animals whose morphology and behavior have been shaped by environmental factors and functional roles. As the modern understanding of genetics developed, humans began to intentionally breed dogs for a wide range of specific traits. Through this process, the dog has developed into hundreds of varied breeds, and shows more behavioral and morphological variation than any other land mammal. For example, height measured to the withers ranges from a few inches in the Chihuahua to a few feet in the Irish Wolfhound; color varies from white through grays (usually called "blue'") to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; coats can be short or long, coarse-haired to wool-like, straight, curly, or smooth. It is common for most breeds to shed this coat, but non-shedding breeds are also popular.

This text uses material from Wikipedia licensed under CC BY-SA