Animals adapt specific methods and behaviors to reproduce and ensure survival of their offspring. Together, these methods are called strategies. These strategies

The strategies are made to ensure that the young offsprings could survive and develop into maturity.

It's the instinct that exist by all type of organisms. We had the drive to protect the younger generation who still hasn't developed yet, teach them

all necessary skill to survive until they could survive in their own. (such as when we teach our children how to read or when birds teach their offsprings to fly.