Final answer:
An animal's intelligence should be taken into account when deciding how humans should treat them. Humans have a responsibility to treat animals with respect and consider their needs and welfare.
Step-by-step explanation:
When considering how humans should treat animals, it is important to factor in the animal's intelligence. Animals with greater intelligence have more learned behaviors and can learn to adapt to different situations. Humans, being the most intelligent animals, have a responsibility to treat other animals with respect and consider their needs and welfare. For example, highly intelligent species like apes should not be kept in captivity but rather in environments that allow them to exhibit their natural behaviors.