First of all, the teeth. Our teeth do not look like the teeth of carnivores; it looks like the teeth of species that eat vegetable, grass, flowers, fruits and tubers.
Carnivores sweat through their tongues. Therefore, on hot days, we can see dogs or tigers sticking out their tongues, sweating perspiration (not saliva); whereas humans as well as vegetarian animals sweat through the pores on the skin.
Normally, carnivores' bowels are three times their lengths; if a tiger is one meter long, its bowel is pretty much three meters. This ratio of herbivores is about ten or twelve to one, which means the bowel of a one-meter buffalo can be up to twelve meters long. Our intestines' average length is twenty-five feet. Creation is right about this point. Meat rots fast so it should be excreted slowly in order for us to suck all the nutrients.
The stomach acid concentration of carnivores is ten times stronger than that of herbivores. We can easily guess idea of natural selection here since meat is more indigestible than vegetables. Our stomach acid concentration shows that we are closer to herbivores. So, when we eat a lot of meat or fish, we feel uncomfortable, gassy...