Extraordinary siblings: Mole rats, marmosets, and Radcliffe-Brown According to the theory of kin selection, an organism that shows some level of altruism toward her kin – lowering her own fitness, raising that of a close genetic relative – may enjoy an evolutionary ...

For more, an article
journals.plos.org/plosone/arti...
and blog posts
logarithmichistory.wordpress.com/2025/04/23/e...
logarithmichistory.wordpress.com/2025/04/28/e...

Socially Enforced Nepotism in a nutshell:

Haldane: Would I lay down my life to save my brother? No, but I would to save two brothers or eight cousins.

Me: Together with my sister, I would to save three brothers.

2/3 > 1/2

Logarithmic History The history of the universe -- from the Big Bang to the end of the year -- day by day

I signed on here recently, interested in evolutionary anthropology. Also have side project/hobby, history of universe from Big Bang to present year, every year 1 day a time, on logarithmic scale. Now, May 28, up to Australopithecus. Blog logarithmichistory.wordpress.com, tweets x.com/logarithmic_h