Árvore com a origem do homo sapiens, Notas de estudo de Biologia

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(a) Before Sarich and Wilson Chimpanzee Gorilla Orang-utan Human Sivapithecus Ramapithecus To Old World monkeys -30Myr ago Divergence time —— >15Myr ago (b) After Sarich and Wilson Chimpanzee Gorilla Human Orang-utan Sivapithecus and Ramapithecus Divergence time —— -5Myr ago To Old World monkeys -30 Myr ago Fig. 1.3 How molecular data changed the picture of human origins. Tree (a) depicts the commonly held view of primate relationships during the 1960s, while tree (b) was that produced by Sarich and Wilson using imimunological (serum albumin) distances. This tree, along with a divergence time of approximately 5 million years, has subsequently been confirmed using other molecular data, although human and chimpanzee now appear to be more closely related to each other than either is to the gorilla.