Answer:
Evolutionary theory
Step-by-step explanation:
The change in heritable characteristics such as physical or behavioural change in biological populations over time or successive generation is what is refers to ask Evolution. The theory was first formulated by Darwin in his book titled 'On the Origin of Species' in 1859.
Taking emotions, impulses, and habits of humans over the past 100,000 years, one will knows that these characters follow the behavioural characteristics of those in past otherwise refers to as Homo Sapiens derived from Latin name meaning 'wise man' and was introduced in 1758 by Carl Linnaeus. This theory is called Evolution Theory.