In this lab, we considered several different explanations for the evolution of bipedalism. In this exercise, we will take a closer look at the postural feeding hypothesis. According to the postural feeding hypothesis, bipedalism evolved as an extension of existing upright feeding postures common among apes. If this hypothesis is correct, it would mean that bipedalism evolved initially to suit feeding from trees, rather than to suit a terrestrial lifestyle. Review the data in the table on p. 416 of your lab manual. Use this data to answer the questions in this exercise. In general, which primates engage in more suspensory arm-hanging: the baboon or the apes