AB blood type

>>8839079
There must have been some evolutionary advantage to carrying antigens on blood cells. Otherwise we'd all be O.

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>>8839079
propensity for developing blood clots would be great for wounds.

the other problems you mention occur after you've already reproduced so it doesn't really matter form an evolution standpoint

>>8839101
>reproduce
>die
>offspring gets picked off because nobody to protect it
Fuck off with this meme.

>>8839127
>reproduce when you're 15-18
>be maybe 40 by the time they're adults
>Alzheimers starts kicking in
if your offspring just die when they're adults it's not necessarily your fault especially considering humans are tribal savages who work together in confederacies

>>8839127
Humans have always been very social creatures, like a very large percentage of mammals are. Even disregarding what >>8839144 said about the likely age the kids would be at, there'd most likely be a decent number of other humans around to take care of them/hunt with them/breed with.

Yet another way to be racist. I discriminate against other than my own blood group because we are *better.

>>8839079
is any of that even true? Where did you read this?

>>8839166
http://www.neurology.org/content/early/2014/09/10/WNL.0000000000000844.short?rss=1
https://www.sciencedaily.com/releases/2013/02/130204130034
www.ncbi.nlm.nih.gov/pubmed/22895671
https://www.ncbi.nlm.nih.gov/pubmed/20937632

>>8839201
fix'd link
https://www.sciencedaily.com/releases/2013/02/130204130034.htm

>>8839127
>not understanding some universal principals about reproductive fitness

fuck off with this meme