Photograph of a herd of cattaloes (cattle-American buffalo hybrids) on the range at the Goodnight Ranch in Texas in the early/mid 20th century. The text beneath the image notes the cross-breeding experiments done by Colonel Charles Goodnight and C J ('Buffalo') Jones in the 1880's.

Scharff writes that a great deal has been written about the domestication and place of origin of Bos taurus primigenius, but that Professor Keller has shown conclusively that its domestication took place in Greece around 1500BC and that it never existed in Northern Asia or North America. Scharff remarks that the Bison bonasus is undoubtedly a near relation to the American bison.

Illustration of an American bison or buffalo (Bison americanus) by Specht in the 19th century. It shows a buffalo standing upon a rock above a snake ready to strike with a herd of buffalo in the background. The name 'Wallace' was handwritten on the slide.