Step #1 on how to become an extinct species: Go vegan.http://www.latimes.com/science/sciencenow/la-sci-sn-giant-panda-bamboo-meat-20150519-story.html
Of course, we have a serious example here of an absolutely terrible bit of science writing -- as expected from the LA Times.
Firstly, evolution doesn't "abandon" anything. That implies causative, intentional choice and evolution is an emergent process. Not that I would expect someone who graduated from journalism school to understand the difference, but a man needs dreams.
Secondly, it's only been 7 million years. As +Eric Thompson
points out, pandas have been dying as a species for longer than humans have been around as a species – which probably means that those who choose to go vegan among our species will probably kill off their genetic lineage before he can do too much harm to us as a whole. I consider that a total win. Expecting the dynamic of intestinal flora to shift from carnivory to a specific diet of bamboo in anything under 50 million years is probably unbelievably optimistic.
Then again, this is the LA Times were dealing with. Judging from the fact that they all have jobs, maybe unbelievable and unguarded optimism is warranted. I know I'm surprised.
Still, this stands as an excellent morning to those considering veganism as a legitimate dietary choice for human beings. Hint: it isn't. It never has been. It never will be. And you have a relatively unchanging gut full of intestinal biota that says so.
Pandas. Proof that nobody wants to have sex with a vegan.