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 Michigan State Spartans are the athletic team that represent Michigan State University. The school's athletic program includes 25 varsity sports teams. Their mascot is a Spartan warrior named Sparty, and the school colors are green and white.