Far more animals in the wild die from the consequences of senescence than evolutionary theory had long considered possible.pic.twitter.com/cwISKundGG
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
2) benefit to grandkids' fitness must be >4x the benefit to you right ?
True. Disregarding potential collective genetic benefits of individuals ceasing to reproduce. Questionable, but thoughtfully pondered here.
1) If you gave birth to males or your daughters did the chances are many grand kids ain't yours anyway
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.