3 ms·
Given your hypothesis you also need an explanation why there aren't thousands of blood types.
by folli 10y ago
Given your hypothesis you also need an explanation why there aren't thousands of blood types.
- ivanhoe 10y agoActually there's quite a few, if you count all the subtypes and antigens https://en.wikipedia.org/wiki/Human_blood_group_systems https://en.wikipedia.org/wiki/Human_blood_group_systems
- lightqa 10y agoI always thought that everything happens/happened , all the possibilities were tried by nature and 99% of those possibilities couldnt produce furthur (got killed diseases/stability) .