Which among the following is the most logical corollary to the above passage?
Mass nesting in all species of bird is essential to ensure complete survival of their offspring.
Only birds have the capacity to develop social behaviour and thus can do mass nesting to raise their chicks in safety.
Social behaviour in some species of birds increases the odds of survival in an unsafe world.
All species of birds set up creches for their chicks to teach thorn social behaviour and loyalty