Yay for Blake the Donor Dog! My rescue clinic also has a doggy blood donor that helps make blood products for all kinds of animals.
Here is some random doggy blood trivia:
Doggos have over 12 blood types.
The first ever blood transfusion was done in England in 1665 between 2 living dogs. The first human blood transfusion was 2 years later. They gave him sheep's blood! ๐