as others have said there are other uses for binocular vision. for example the ubiquitous forward facing eyes of primates might suggest a lineage of predators devoted exclusively to hunting, but in fact most primates are omnivorous, exhibiting only opportunistic meat eating with the majority of their diet being plants, fruit, and bugs. binocular vision is useful for depth perception during arboreal locomotion, such as brachiation and jumping between branches, with all primates being adapted to tree climbing to some degree, including humans though we are one of the most adapted to terrestrial living compared to other primates. we use our binocular vision more for fine close up work and to support powerful accurate throwing, as opposed to how cats use theirs which is for highly accurate depth perception for intercepting prey in an ambush or chase.