Mature Wild Ladies (Official - Method)

Using data from wild killer whales, this paper explains how "mature" females who no longer breed contribute to the survival of their adult sons and daughters, ensuring the continuation of their genetic line without competing for resources.

Mature "matriarchs" are often the primary decision-makers for their herds or pods. Other Notable Research on Mature Females in the Wild: mature wild ladies

One "useful paper" that provides deep insight into why "mature" females are critical to wild populations is: Using data from wild killer whales, this paper