Question

question 8
which of the following is not an ancestral characteristic of primates?
a collar bone
five digits on hands and feet
plantigrade locomotion
stereoscopic vision

Explanation:

Primates have a collarbone (clavicle), five - digits on hands and feet, and stereoscopic vision as ancestral traits. Plantigrade locomotion (walking on the soles of the feet) is not an exclusive or defining ancestral characteristic of primates. Many other non - primate animals also have plantigrade locomotion.

Answer:

C. Plantigrade locomotion