Which are stronger pound for pound Herbivores or Carnivores?

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I don't think vegetation was any less diverse back then, it might even have been more diverse due to the non-existance of human habitation.

Herbivores didn't simply change into carnivores either. Carnivores came from an extremely specific ancestor, either herbivorous (not resembling today's herbivores for sure) or omnivorous, millions of years ago in the Cretaceous, while today's herbivores (bovids and cervids) evolved less than 40 million years ago.

But, anyway, let's get back to topic:

Suppose that herbivores really do get easier muscular regeneration and growth due to essential amino acids found in some vegetation (look at gorillas and gaur): this doesn't account for the individual differences in tiger muscle compared to gaur muscle. It seems that, for the same muscle weight and muscle fiber type, tiger muscle is still stronger.

There has been a study that proves my point, mainly about the differences between a trained human's, lion's, and caracal's muscles. For the same fiber type and same muscle weight, the two cats' muscles were almost three times greater in force production than those of trained humans. Reply