Many areas of the world, however, cannot grow crops sustainably. Think of arid scrub or cold countries; mountains or forest regions. Grasses grow most efficiently in these places. Humans can’t digest grass, so the most sensible thing to do is to allow animals to turn it into nutritious meat, which they do admirably.
And then there are wild animals lots of them. This IS meat at its most natural. Yet there are so few hunters nowadays that some populations are out of control Pigeons raid crops; wild boar dig up vineyards; roe deer nibble young trees; elk lumber across roads into vehicles a they have become pests and have sometimes started to destroy their own environment. Are rabbits eating your vegetable garden? Why not eat the rabbit and enjoy the flavour of the Wild combined with your carrots?