Pets provide companionship and physical and emotional benefits to their owners. Common house pets include dogs, cats, rabbits, rodents, birds, reptiles, fish, and spiders. Archeological evidence suggests that dogs have been kept as pets for at least 12,000 years. Pets can positively impact their owners' health by boosting vitality, helping owners find meaning and joy in life, and preventing loneliness, though some people may experience health risks like allergies or injuries from pets.