What do you mean by "breeding age"? Women of course undergo menopause at some point. Men may have peak vigour around age 40, but can continue reproducing into t

What do you mean by "breeding age"? Women of course undergo menopause at some point. Men may have peak vigour around age 40, but can continue reproducing into their sixties or beyond. In modern forager populations in Africa and Australia, it's common for men to take wives at such an advanced age. See eg https://d1wqtxts1xzle7.cloudfront.net/46398103/s12110-000-1001-720160611-15509-1afrpfu-libre.pdf?1465652678=&response-content-disposition=inline%3B+filename%3DThe_patriarch_hypothesis.pdf&Expires=1722847016&Signature=I4seuZfUOOgji40VjRiEGFiKZA6YFn1dyZt-Gwaevz2I9NH5NeYDWKR0Qp4NTzu-Pvq-k~uzRYZXGsRLFc3Ba4nWlfCKbplDN4oWhIRmitriR3FDtqXn36scjakBgsWsOY3tq6KM6wTTrAVG7Za3Qj2c6hfbd4Xz6DY~7OPYiIz8dOSvM-slj2ZxB5Hv6TR3sE53k0DwBosGBm1NNSfZZ-kVJV2BtOKzp0vaq1-tj1X-lb6~IEfScdJhOSQ09v58FHXFgkM9GTJsaoSKZgqZg7RtDMMpQ9o8iF9xPKp8XM4486mNE~zXqkMct3pKBrs0EJ0qtgTgIXQsWTvw1xQCgg__&Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA https://d1wqtxts1xzle7.cloudfront.net/46398103/s12110-000-10... . I don't know about the overall hypothesis, but there's some fascinating data there about how old men can get whole still playing important tribal roles.