Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints. Autoimmune diseases are illnesses that occur when the body's tissues are mistakenly attacked by their own immune system.
What role did the bison or buffalo play in the culture of the Plains Indians? The bison were an important source of fur, food, and shelter for the Plains Indians. They used every part of the animals they killed. Bison were also an important part of their culture.
The bisonâs lifespan of 25 years, rapid reproduction and resiliency in their environment enabled the species to flourish, as Native Americans were careful not to overhunt, and even men like William âBuffalo Billâ Cody, who was hired by the Kansas Pacific Railroad to hunt the bison to feed thousands of rail laborers for years, could not make much of a dent in the buffalo population.