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A dog's whiskers. Dogs have specialized whiskers known as vibrissae, sensing organs present above the dog's eyes, below their jaw, and on their muzzle. Vibrissae are more rigid, embedded much more deeply in the skin than other hairs, and have a greater number of receptor cells at their base.
Animals that do not whisk, but have motile whiskers, presumably also gain some advantage from the investment in musculature. Dorothy Souza, in her book Look What Whiskers Can Do [35] reports some whisker movement during prey capture (in cats, in this case): Whiskers bend forward as the cat pounces. Teeth grasp the mouse tightly around its neck.
The parts of the head are the nose, muzzle, stop, forehead or braincase, occiput (highest point of the skull at the back of the head), ears, eyes, eyebrows or brows, whiskers, flews (lips, which may hang down), and cheeks. Dog heads are of three basic shapes: [4] Apple-headed refers to a dog's head that is round on top, not flat.
Image credits: an1malpulse #5. Animal campaigners are calling for a ban on the public sale of fireworks after a baby red panda was thought to have died from stress related to the noise.
The typical lifespan of dogs varies widely among breeds, but the median longevity (the age at which half the dogs in a population have died and half are still alive) is approximately 12.7 years. [ 73 ] [ 74 ] Obesity correlates negatively with longevity with one study finding obese dogs to have a life expectancy approximately a year and a half ...
Grey dogs are born fully coloured and develop the greying effect over several months. New hairs are grown fully coloured but their colour fades over time towards white. Greying is most evident in continuous-growing coats (long + wire + curly) as individual hairs remain on the dog long enough for the colour to be lost.
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 ...
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