Thanks for nothing I got the answer myself but still don't understand:
While carnivores are limited mostly to meat, and herbivores limited mostly to plants, omnivores can eat both. They are more well suited to any environment. They aren't limited as much to what they can eat, so they will have an easier time finding food, and therefore have an easier time surviving
G0rdi
Favorite Answer
Omnivores eat anything.
Hopefully it will be obvious that if you're not restricted in your choice of food, you're more likely to find something you can eat than someone who specialises in just meat or vegetation.
JazSinc
Nope. Take you for example. You're an omnivore. Now let's move you to the Great Plains of North America. Plenty of grass. That's pretty good vegetation for horses and ruminants (e.g. bison). It's not nutritious for you. Herbivores win at finding food. Also note that horses and bison are huge. They were probably food for things like the American lion, the sabre-toothed cats, the short-face bear, and dire wolves (up until the weird extinction event 12,900 years ago). You're not carnivore enough to face down a horse or bison.