According to the work of Lieberman and Laitman,…
According to the work of Lieberman and Laitman,... According to the work of Lieberman and Laitman, language as we know it appeared about ________ years ago and is associated with the development of the vocal tract and other capabilities of A) 6,000 / modern civilized humans B) 2 million / Homo habilis C) 3 million / Neanderthals D) 100,000 / Homo sapiens Additional Requirements Level of Detail: Only answer needed