If vegetarianism was passed down in families and kept on going, so all descendants were...?

Question

Would that push evolution to eventually cause us to branch off into two human species? Would the teeth of vegetarians change?

Answer 1

That has already happened. One of our ancestors were vegetarians. But during hard times one group began eating carcasses to survive. They became scavengers and omnivores by necessity while the group that remained vegetarians went extinct. Humans are unable to metabolize cellullose which is why the vegetarians had a harder time surviving. It is so much easier to "steal" proteins from other animals by eating them.

Evolution works on a necessity basis. We are not really equipped to be all vegeterians but out ingenoity makes it possible for us to be so. We have agriculture that can produce the food we need. We have discovered which plants produce which proteins and vitamins. He have learned what we need. We have science to do the hard work for us. So evolution doesn´t have to change us all that much if one population became vegetarians. We change the food to suit us now. We don´t need for evolution to change us to suit the food. We don´t need teeth to strip bark off trees. We don´t need teeth to grind up grass. We can´t digest grass anyway. And if anything is a little to tough to chew we just cook it.

It would be greatly beneficial for humanity if we were to become vegetarians as animals basically eat the food we could be eating almost directly. We feed animals soybean that is good food for humans. Animalproduction is an enourmus waste of resources. It takes 10 kg of vegetable protein to produce 1 kg of animal protein. And the amount of water used is also enormus. For humans evolution has been put pretty much out of effect. Only if something cataclysmic were to happen, like an environmental disaster that killed off all livestock, would it be evolutionary beneficial to already be a vegetarian as ordinary people, like myself, would find it very hard to become a vegetarian cold turkey. The meat eaters could very well go extinct while the vegetarians would thrive.

Answer 2

If the vegetarians and non-vegetarians did not interbreed at all ... then yes, eventually their genetics would lose the abilitity to interbreed permanently, and thus would officially become two human species.

And yes, the teeth of 'Homo vegetarianus' would eventually change.

But in a large, slow-breeding mammal like humans, both of these processes would take tens of thousands of generations (hundreds of thousands of years).

Answer 3

It probably would but It would be tough for us meat eaters to ignore all those pretty vegetarians for the hundreds of thousands of years it would probably take.

Answer 4

No. The meat cutting teeth would remain vestigle, much like our appendixes and our tailbones.

Answer 5

we gat every idea we form on our own, by not knowing the effects of our ansesters and how they apply the shapoe the world is in nowe

Answer 6

YEAH