Do an­i­mals have blood types?

BBC Earth (Asia) - - Q & A -

Yes they do! As long as the an­i­mals in ques­tion have blood (not all do) then they will have species-spe­cific ‘blood groups’. As with hu­mans, these groups are de­ter­mined by the struc­ture of the blood based on the pres­ence or ab­sence of an­ti­bod­ies along with the make-up of the pro­teins that sit on the out­side of red blood cells. Hu­mans are usu­ally one of four main blood types (although 35 have been iden­ti­fied for us). Thir­teen types have been iden­ti­fied for dogs, eight for horses and three for cats. Back in 1667, lamb’s blood was suc­cess­fully trans­fused into a 15-yearold boy with­out caus­ing a fa­tal al­ler­gic re­ac­tion! CC

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