In that evolutionary sense:
In addition to her surrogacy work, Tyra estimates that she’s donated hundreds of eggs through the years that now sit frozen in little metal canisters in a storage facility. She made $8,000 a cycle and knows of at least 27 children conceived with her eggs. She doesn’t know the fate of all her eggs or the details of all the babies born of them, but she loves that her DNA is part of so many different family trees.
As far as actual nature is concerned the more grandchildren you have the more you’ve won.