Cooperative brood care (including care of offspring from other individuals), overlapping generations within colony of adults, and division of labor into reproductive and non reproductive groups.
It is supported by evidence from a wide variety of scientific disciplines, including genetics, which shows that different species have similarities in their DNA. There is also evidence supporting the Theory of Evolution in paleontology and geology.
Parents may feel that for a brief period of time that their teenager is inhabited by Invaded by another brain. The parents are 'thrown for a loop' when the kids get to be adolescents. The parents need to recognize that it is just a phase of child development.The period for the rapid brain growth will occur at Adolescence for baby Natalie.
The unexpected discovery that was found just behind the frontal cortex is a growth spurt, an overproduction of cells.