How long ago did the common green monkey and the vervet monkey diverge?

Answer

1.9 million years ago

Genetic evidence indicates that the evolutionary separation between the common green monkey, Chlorocebus sabaeus, and the vervet monkey, Chlorocebus pygerythrus, occurred approximately 1.9 million years ago. This timeline, within the Pleistocene epoch, highlights relatively recent speciation driven by geological and climatic changes that separated ancestral populations.

How long ago did the common green monkey and the vervet monkey diverge?
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