Combination incisor, canid, and molar dentation, a single stage stomach, forward facing eyesight with great depth perception and relatively little peripheral vision, bipedal endurance permitting all day and all night hiking if given sufficient water and snack--
We are omnivorous predator-scavengers by nature.
We removed most of the predators from our environment, so we must replace them with our own predatory actions in order to maintain balance in the environment, carefully.
Farmed animals have a population problem. If there is to be an intelligent response to the problem of using too much land, food, and water to grow animals, it will have to include the responsible, gradual reduction in populations until they can be reintroduced to an at least quasi-wild context, and we will have to continue to hunt them on occasion, as needed, or reintroduce/increase the populations of their predators.
Pollinators are more important than ever in such a case; however, the overuse of invasive honeybees has caused a competition problem. The non-natives out-compete the natives largely because they have direct human support. This fuss over "massive bee die-offs" and "devastating results for [unsustainable monoculture] farmers" is manufactured outrage designed to prop up a failed, imbalanced system. If you can't farm sustainably and in balance with the needs of nature, then fuck off and find a different job. I don't care if your grandaddy did it this way.
Finally. Veganism is a post-scarcity ideology. We are not there yet. At least, 95% or more of us aren't. One can abide non-cruelty to animals and humans, but doing so at the cost of their living healthy, libre lives is insufficient at best. To act as if a set of biologically unnecessary dietary restrictions is a Big Moral Issue completely ignores the ethical concerns of minding your own damn business, let alone those of living under capitalism with scarcity.