Which extinct hominin first appeared about 1.9 million years ago and had a larger brain than Homo habilis, its immediate predecessor?

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Homo ergaster, also known as African Homo erectus, first appeared about 1.9 million years ago and had a larger brain than Homo habilis. This species is considered to be one of the first hominins to exhibit many traits associated with anatomically modern humans, such as increased body size, longer legs, and a more efficient stride.

Which Extinct Hominin First Appeared About 1