Cold agglutinin disease. Cold agglutination - at body temperature, the antibodies do not attach to the red blood cells. At lower temperatures, however, the antibodies react to Ii antigens, bringing the red blood cells together, a process known as agglutination.
American Robin (Turdus migratorius). The robin red breast was designated as the state bird of Michigan by House Concurrent Resolution No. 30, the Senate concurring, on April 8, 1931.
The American robin is the state bird of Connecticut, Michigan, and Wisconsin. It was also depicted on the 1986 Birds of Canada series Canadian $2 note, but this note has since been withdrawn. Robin's egg blue is a color named after the bird's eggs. The American robin has a place in Native American mythology. The story of how the robin got its red breast by fanning the dying flames of a campfire to save a Native American man and a boy is similar to those that surround the European robin.