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Many forms of pemphigus can be identified in dogs using methods similar to those employed for humans. [14] Pemphigus vulgaris is rare in humans and animals, but is often fatal if left untreated. In dogs, the disease presents itself so similarly to the way it occurs in humans that dogs can be used as models for the disease in humans. [4]
Lovesickness refers to an affliction that can produce negative feelings when deeply in love, during the absence of a loved one or when love is unrequited. The term "lovesickness" is rarely used in modern medicine and psychology, though new research is emerging on the impact of heartbreak on the body and mind.
When a dog has wild-type alleles at all three genes, it will have a yellow coat. When the dog has a loss-of-function allele at MC1R, it will have a yellow coat regardless of the genes it carries on the other two genes. Only a dominant black allele at CBD103 will produce a black coat color in dogs possessing wild-type alleles at MC1R and Agouti. [8]
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Hair colors can change well into puberty, as some genes aren't "switched on" until the hormones flood the body in adolescence. Eventually, usually in the 30s, human hair stops producing melanin ...
A dog's coat is composed of two layers: a top coat of stiff guard hairs that help repel water and shield from dirt, and an undercoat of soft down hairs, to serve as insulation. [1] Dogs with both under coat and top coat are said to have a double coat. Dogs with a single coat have a coat composed solely of guard hairs, with little or no downy ...
Image credits: colcacanyon Godding notes that there are many misconceptions about grooming. “A lot of people think only long-haired dogs need regular grooming, but short-coated and double-coated ...
A melanistic mask (also referred to as a mask or masking) is a dog coat pattern that gives the appearance of a mask on the dog's face. The hairs on the muzzle, and sometimes entire face or ears, are colored by eumelanin instead of pheomelanin pigment. Eumelanin is typically black, but may instead be brown, dark gray, or light gray-brown.