when did blood type ab first evolve in human civilization?

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when did blood type ab first evolve in human civilization?

2006-09-23 04:50:08 · 3 answers · asked by white_dove_angel 2 in Social Science ➔ Anthropology

3 answers

Blood types actually evolved before the split between chimpanzee and human ancestors -- about 8 million years ago. Chimpanzees have the same blood type groups as humans do, determined by the same genes.

2006-09-23 07:12:14 · answer #1 · answered by stevewbcanada 6 · 0⤊ 0⤋

Some dogs have blood type AB, and so do most other mammal species. The ABO blood types PRECEDE the evolution of the human species by about 100,000,000 years.

2006-09-25 13:58:31 · answer #2 · answered by Anonymous · 0⤊ 0⤋

Way before the guy with the blood type diet says it did.

2006-09-23 11:52:16 · answer #3 · answered by Catspaw 6 · 0⤊ 1⤋