There is very much pressure for that. Natural selection is just about passing genes to the next generations. If by living longer you can increase the safety, and the reproductive success, of your offsprings, you select for that.<p>Reproductive success in a natural selection context is not only about the sheer number of offsprings you have, it&#x27;s about how good you can disseminate genes to the next generations. If genetic mutations allow you to increase that dissemination by caring for your offsprings, then it&#x27;s selected.