What is a very intelligent animal that lives 30 - 50 years old?

The African Grey Parrot is a highly intelligent animal known for its remarkable cognitive abilities and lifespan, often living 30 to 50 years in captivity. These parrots can mimic human speech and demonstrate problem-solving skills, showcasing advanced communication and social interaction capabilities. Their intelligence and long lifespan make them popular companions, though they require mental stimulation and social engagement to thrive.