Females increase the survival of a species mainly by how they reproduce, care for young, and choose mates, all of which boost both the number and quality of surviving offspring.

Key female roles

  • Reproduction and pregnancy
    Females produce eggs, become pregnant (in mammals), or lay eggs, which is the starting point for any new generation.

Their bodies are adapted to carry and nourish developing young, greatly raising the chances that embryos survive to birth or hatching.

  • Parental care and nurturing
    In many animals, females provide most of the feeding, grooming, teaching, and protection of the young.

This intense care means more offspring survive long enough to reproduce themselves, which directly strengthens the species’ long‑term survival.

  • Feeding and protection of the group
    In social species like lions, females do most of the hunting and often help defend the territory.

By bringing in food and working together to fend off threats, they keep both cubs and adults healthier and safer, stabilizing the whole group.

  • Choosing high‑quality mates (sexual selection)
    Females in many species are choosy about partners, preferring males with strong, healthy, or well‑adapted traits.

This mate choice helps “filter” genes so that future generations inherit traits that improve survival and reproductive success.

  • Longer life and experience
    In many mammals and birds, females often live longer than males, especially in species where they invest heavily in raising offspring.

Living longer lets experienced females raise multiple generations and sometimes even help grandchildren, multiplying their impact on species survival.

Putting it together (quick example)

Imagine a pride of lions:

  • Female lions cooperate to hunt, feed the pride, and protect cubs.
  • They also choose strong males, so cubs inherit good survival traits.
  • Their teamwork and care mean more cubs grow up and have cubs of their own, keeping the species going over time.

In short, by producing young, caring for them, supporting the group, and selecting good mates, females greatly increase both how many individuals survive and how well the species adapts to its environment.

TL;DR: Female roles like reproduction, maternal care, group support, and selective mating all raise offspring survival and improve gene quality, which together increase the survival of the species.

Information gathered from public forums or data available on the internet and portrayed here.