Cultural evolution is an evolutionary theory of social change. It follows from the definition of culture as “information capable of affecting individuals’ behavior that they acquire from other members of their species through teaching, imitation and other forms of social transmission”.

Third, humans can modify the evolutionary independence of populations and species by altering hybridization, gene flow and introgression [94]. Introductions can also increase or decrease biodiversity by altering patterns of gene flow, hybridization and gene flow within and among species [94,98].

1. Different individuals in a population have different morphologies, physiologies, and behaviors (phenotypic variation). 2. Different phenotypes have different rates of survival and reproduction in different environments (differential fitness).

Unilineal evolution, also referred to as classical social evolution, is a 19th-century social theory about the evolution of societies and cultures. Different social status is aligned in a single line that moves from most primitive to most civilized. This theory is now generally considered obsolete in academic circles.

Definition. Social evolution is the area of evolutionary biology that studies how social interactions, especially between individuals of the same species, arise, change and are maintained. A particular focus is on how cooperative behaviour can be beneficial despite the intuitive advantages of being selfish.

Charles Darwin

4 Small Ways to Make a Big Social Change Impact

1. Practice Random Acts of Kindness. Small, random acts of kindness—like smiling at a stranger or holding the door open for someone—can be a great way to make a social change impact.
2. Create a Mission-First Business.
3. Volunteer in Your Community.
4. Vote With Your Wallet.