Conclusion
The grandmother effect needs to establish that longevity, menopause expression, and redirected investment commonly occurred in our ancestral past. Evidence from contemporary hunter-gather societies and historical data produce mixed results. Many theoretical assumptions, such as differing strategies for maternal and parental grandparents, have been shown. The fundamental flaw, however, is the exclusion of male assistance and benefits from continued fertility.
Read more about this topic: Grandmother Hypothesis
Famous quotes containing the word conclusion:
“No one can write a best seller by trying to. He must write with complete sincerity; the clichés that make you laugh, the hackneyed characters, the well-worn situations, the commonplace story that excites your derision, seem neither hackneyed, well worn nor commonplace to him.... The conclusion is obvious: you cannot write anything that will convince unless you are yourself convinced. The best seller sells because he writes with his heart’s blood.”
—W. Somerset Maugham (1874–1966)
“Girls who put out are tramps. Girls who don’t are ladies. This is, however, a rather archaic usage of the word. Should one of you boys happen upon a girl who doesn’t put out, do not jump to the conclusion that you have found a lady. What you have probably found is a lesbian.”
—Fran Lebowitz (b. 1951)
“Human affairs are so obscure and various that nothing can be clearly known. This was the sound conclusion of the Academic sceptics, who were the least surly of philosophers.”
—Desiderius Erasmus (1469–1536)