Most of the selective breeding has been done while these animals were on simple diets, so perhaps some genetic adaptation has happened as well. Besides, aren’t carnivore diets quite monotonous in nature anyway?
Most of the selective breeding has been done while these animals were on simple diets
I am not so sure of that. People have been feeding cats and dogs commercial pet food only for the last 50 years or so and only in wealthy countries. Before that (and in the rest of the world, still) people fed their pets a variety of food that doesn’t come from a bag or a can.
aren’t carnivore diets quite monotonous in nature anyway?
In terms of what you kill and eat, mostly yes, but in terms of (micro)nutrients prey not only differs, but also each body contains a huge variety (compared to plants).
aren’t carnivore diets quite monotonous in nature anyway?
There’s probably seasonal variation—Farley Mowat described wolves eating a lot of mice during the summer when mice are plentiful. Also, I’m pretty sure carnivores eat the stomach contents of their prey—more seasonal variation. And in temperate-to-cold climates, prey will have the most fat in the fall and the least in the early spring.
It wouldn’t surprise me if there’s a nutritional variation for dry season/rainy season climates, but I don’t know what it would be.
Most of the selective breeding has been done while these animals were on simple diets, so perhaps some genetic adaptation has happened as well. Besides, aren’t carnivore diets quite monotonous in nature anyway?
I am not so sure of that. People have been feeding cats and dogs commercial pet food only for the last 50 years or so and only in wealthy countries. Before that (and in the rest of the world, still) people fed their pets a variety of food that doesn’t come from a bag or a can.
In terms of what you kill and eat, mostly yes, but in terms of (micro)nutrients prey not only differs, but also each body contains a huge variety (compared to plants).
There’s probably seasonal variation—Farley Mowat described wolves eating a lot of mice during the summer when mice are plentiful. Also, I’m pretty sure carnivores eat the stomach contents of their prey—more seasonal variation. And in temperate-to-cold climates, prey will have the most fat in the fall and the least in the early spring.
It wouldn’t surprise me if there’s a nutritional variation for dry season/rainy season climates, but I don’t know what it would be.