学 名：Canis lupus familiaris
分 类：食肉目 犬科
Scientific name：Canis lupus familiaris
English name: dog
Category: Carnivora Canidae
Distribution: All over the world
Habits: They reach sexual maturity at 2 to 5 years old. The life span is 12 to 15 years. They are territorial creatures and like to hunt. Dogs were the earliest animals to be domesticated by human beings, they have a strong desire to protect their masters.