The Dog

Topics: Management, Scientific method, Customer, Customer service, Leadership, Madrid Metro / Pages: 16 (3770 words) / Published: Oct 9th, 1999
The Dog

Domestic dog, carnivorous mammal, generally considered the first domesticated animal. The domesticated dog has coexisted with human beings as a working partner and household pet in all eras and cultures since the days of the cave dwellers. It is generally believed that the direct ancestor of the domestic dog is the wolf, originally found throughout Europe, Asia, and North America.
Remains of a dog, estimated to be 10,500 years old, have been found in Idaho.

TAXONOMY Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora
Family: Canidae Genus: Canis Species: Canis familiaris

ECOLOGY & HABITAT

Little is known about wild dogs of the past but that they are carnivores: hunters and scavengers. This means that they are secondary consumers in web chains. Eventhough they are carnivores they sometimes accept eating green plants.
The ecology of dogs right know is that it helps the human in many fields of life.
Since the cave dweller times, dogs have been domesticated by humans and it has helped him to hunt, in herding, protection, etc. It has been very important as a work animal and as a psychological support for humans. The habitat of the dog is where it's owner lives. Different dogs have different adaptations to their ancestral habitat but nowadays, this is not applicable.

ANATOMY

SKELETON

The skeleton of the dog is the articulated structure, moved by the muscles, that holds the dog's body and protects some organs and the nervous system. It also functions as mineral and blood deposit of the body. The skeleton of a dog is made up of approximately 321 bones: 134 form the axial skeleton (skull, vertebrae, ribs, etc.), and 186 form the appendicular skeleton (appendages). An extra bone has to be added for male dogs which is the penile bone. The dog is a digigraded animal (it walks with it's toes). It lies on it's third phalanges which are protected by palm cushions. The dog's toes are arranged in an angle which gives more facility of rest after

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