They certainly do. From a very quick google search: https://www.sciencedaily.com/releases/2010/09/100927141144.htm https://www.sciencedaily.com/releases/2010/0

They certainly do. From a very quick google search: https://www.sciencedaily.com/releases/2010/09/100927141144.htm https://www.sciencedaily.com/releases/2010/09/100927141144.h...