Meat is responsible for human beauty. From the BBC story:

Eating raw meat and making stone tools may be behind the smaller teeth and faces of humans compared with their ancient relatives.
Meat and tools, not the advent of cooking, was the trigger that freed early humans to develop a smaller chewing apparatus, a study suggests.
This in turn may have allowed other changes, such as improved speech and even shifts in the size of the brain.

Think about it: Thanks to our ancestors eating flesh, there was a Marilyn Monroe and a Cary Grant.

Thanks to meat, there is a Halle Berry and George Clooney.

Heck, thanks to meat, there is a vegan Alicia Silverstone to entice teenage boys to animal rights through applied nudity.

Take that, PETA.