4 ms·
Why do we have blood types?
- teh_klev 9y agoBlog-spam copy of the following which was discussed last month: https://mosaicscience.com/story/why-do-we-have-blood-types https://mosaicscience.com/story/why-do-we-have-blood-types https://news.ycombinator.com/item?id=13856007 https://news.ycombinator.com/item?id=13856007