Dog us a quadruped mammal under vertebrates. It is a domestic animal. Its scientific name is Canis lupus familiaris.
A dog plays the important role of a faithful and true friend. During the absence of his master from home, the dog takes care of the house. A dog keeps thieves away from the house of his master.
1. A dog has a bony structure with vertebral column. Its body is bilaterally symmetrical. So, it is a vertebrate.
2. The dogs are classified as mammals. Its body is covered with hairs. The young ones feed on mother’s milk.
3. It walks on digits. The forelimbs of dog have five digits, while its hind-limbs have four digits.
4. The dog has four well-developed canine teeth, non-retractile claws and a hairy tails.
5. It barks.
Relationship with human-beings:
- A dog is a domestic animal.
- A dog is considered the best friend of man.
- He remains faithful towards his master.
- A dog loves his master. When the master goes out of the house, his dog eagerly waits for the arrival of his master.
- A dog plays with his master.
- Dogs have great sensory capabilities. They are often used by police and investigating agencies.
- They keep the thefts away by keeping a vigilant eyes on them. Thus, they also provide security to us.