This is a quality that separates man from other living things that refers to man's superior ability to to manipulate the environment and think.

Answer: Human intellect

Explanation:

Adaptability refers to one's ability to readily react to changes in one's environment. Humans easily adapt to changes and even modify or change our environment to solve obstacles or issues. This is integral to human intellect or intelligence - we are highly adaptive, capable of execution and organizing complex tasks.