Answer:
Because of survival instinct.
Explanation:
Before Humans became a social creature, they rely on their power to survive in the harsh environment. They fend for themselves, make their own shelter, fight off all the dangerous alone, etc.
Of course, many of them fail and died since there's only so much that a single human can do.
Knowing this, they try to combine their abilities and form groups to survive in the harsh environment. They soon realized that forming a group dramatically increase the chance of their survival since they can rely on other members to cover each other's weaknesses.
This is why humans started too transformed into a social creature.
Abraham was 100 years old and Sarah was 90 years old.
The answer to this question is ACtive adaptaion
Learning and reasoning gives humans the ability to analyze our surrounding and leverage for our own benefit.
This capability will make us able to adapt to the environment that we lived in and help to ensure our survivability before we pass our gene to the next generation.
Indian Massacre Alienated the natives further and they laid siege to the jamestown Fort for several months, When the americans attacked it resulted in the death of 347 native americans