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Dogs

Here in the dogs section of the site you can find helpful information about dogs. Please find below a general overview of dogs, their behaviour and habits.

A dog is a domesticated subspecies of the grey wolf. The process of domestication led to a developed sophisticated intelligence which includes social cognition and a simple theory of mind that is important when interacting with people. These social skills have helped the dog perform in a varity of tasks, such as hunting, herding, protection and recently assisting handicapped individuals.

In the last few hundred years, people have intentionally bred dogs for a wide range of specific duties. As a result of this process, the dog has developed into hundreds of varied breeds and shows more behavioral and physical variation than any other land mammal.

Dog Anatomy

A dog's vision is designed for the purposes of a hunter, however it can be difficult to measure. Visual discrimination is greatly increased for moving objects, it has been shown to be able to discriminate between humans from distances up to a mile. Dogs rely on their vision in low light situations. To help their low light vision, dogs have very large pupils, a greater density of rods in the fovea, an increased flicker rate, and a reflective tapetum. These adaptations serve to improve low-light vision, they however impair the dog's visual acuity. Like most mammals, dogs have colour vision equivalent to red-green colour blindness in humans.

The frequency range of a dog's hearing is approximately 40 Hz to 60,000 Hz. A Dog can detect sounds as low as the 16 to 20 Hz frequency and as high as 45 kHz. Dog's have ear mobility that helps them to pinpoint the exact location of a sound.

Dogs have bewtween 125 -220 million smell sensitive cells, the amount is dependant on the breed of dog.

Dogs are susceptible to various diseases, ailments, and poisons, some can affect humans and some are unique to dogs.

The lifespan of dogs varies among breeds. The average ligespan of most dog breeds is between 10 and 13 years. The average lifespan of a mixed breed dog is one or more years longer than that of purebred dogs. In general small breeds live longer than large breeds.

Dog Behaviour

A dog has a social intellegence that is uncommon as dogs like, humans, are capable of learning in different ways, such as reinforcement learning and by observation. Puppies learn behaviours quickly by following examples set by experienced dogs.

Dogs go through a series of stages of cognitive development, which helps them interact with objects around them. This occurs at approximately 8 weeks of age.

Dogs are pack animals with a complex set of behaviours which determine each dog's position in the pack. Dogs exhibit various postures and other means of non-verbal communication that reveal their state of mind.

Pug Dog