The correlation between anisogamy and sexual selection intensity—the broad theoretical predictions

Evolution Letters, Год журнала: 2024, Номер 8(6), С. 749 - 755

Опубликована: Июль 12, 2024

Abstract Darwin and Bateman suggested that precopulatory sexual selection is more intense on males than females, this difference due to anisogamy (i.e., dimorphism in gamete size number). While a recent paper apparently presents empirical support for hypothesis, another appears at first sight present evidence against it. We argue partly lack of transparent theoretical predictions, discuss analyze theory relation evolution. On one hand, we find there exists relatively little can directly address all the tested predictions; other, picture painted by current indicates both sets results broadly match predictions about causal link between selection, thus reconciling two opposing claims. also very broad, general sense how expected affect selection.

Язык: Английский

Revisiting “Grandmothers and the Evolution of Human Longevity” 2003 AJHBhttps://doi.org/10.1002/ajhb.10156

American Journal of Human Biology, Год журнала: 2025, Номер 37(4)

Опубликована: Апрель 1, 2025

ABSTRACT Compared to our closest living cousins, the great apes, humans can live longer with a distinctive postmenopausal lifespan; development is slower, yet babies are weaned earlier. Continued investigation since 2003 shows grandmother hypothesis robust explanation for those differences and many other human features: When ecological changes in ancient Africa spread profitable foraging targets ancestral adults that infants small juveniles couldn't handle, reliable by females near end of their own fertility could subsidize dependent grandchildren shorten daughters' time next conception. Coevolution shorter birth intervals slower aging expanded pool older still‐fertile males. With more competitors, guarding mate wins paternities, linking pair bonds mid‐life menopause. Mate plus males' advantage reputation building explains aspects patriarchy. In addition, final brain size placental mammals depends on duration development. As increasing longevity slowed size, earlier weaning still physically helpless prioritized attention capacities engage carers. Resulting socially precocious infancies wire us lifelong appetites cooperation.

Язык: Английский

Synergy between systematics, biogeography and biodiversity: an honorary volume celebrating the achievements of professor Zoltán S. Varga

Biologia Futura, Год журнала: 2023, Номер 74(4), С. 347 - 350

Опубликована: Дек. 1, 2023

We are delighted to introduce a special issue of Biologia Futura, dedicated celebrating the lifetime achievements in research, biodiversity conservation, and mentoring professor Zoltán S

Язык: Английский