In Europe, people used cats to get rid of rodents and other pests. Cats were used on ships to control rodent population and disease. When Christopher Columbus came to America, the cats were left in the country and flourished.
I could dig deeper into how the prehistoric cats relate to the big cats we have today such as the leopard, jaguar, puma etc. I could also research the other prehistoric cat species that lived after proailurus and pseudaelurus.
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