1. Dogs: Dogs have been domesticated for thousands of years and serve a variety of purposes, such as providing companionship, assisting in hunting and herding, providing security and police work, guiding the visually impaired, detecting drugs and explosives, and offering therapeutic assistance.
2. Cats: Cats are often kept as pets for companionship and pest control. They are skilled at hunting rodents and small animals and can provide comfort and emotional support to humans.
3. Horses: Horses have been used for transportation, pulling carriages and wagons, and riding for leisure and competition. They have also been employed in military campaigns throughout history.
4. Cattle: Cattle are primarily raised for their meat and milk, but they also contribute to the production of leather, fertilizer, and other byproducts.
5. Pigs: Pigs are primarily raised for their meat, but they are also used for medical research and as companion animals.
6. Chickens: Chickens are commonly raised for their eggs and meat. They also contribute to the production of feathers and fertilizer.
7. Bees: Bees are essential for pollination, contributing significantly to the growth of flowering plants, fruits, and vegetables. Some people keep beehives to harvest honey and other bee products.
8. Sheep: Sheep are raised primarily for their wool and meat. Their wool is used to produce a variety of textile products, including clothing and blankets.
9. Goats: Goats are kept for their milk, meat, and fiber. Their milk is commonly used to produce cheese and other dairy products.
10. Llamas and Alpacas: These animals are found in South America and are known for their soft and luxurious fiber. They are raised primarily for their wool, used in various textiles and clothing items.