Richard Rangham, author of Catching Fire: How Cooking Made Us Human, has developed a theory that may very well change the way we look at the world and ourselves. Looking back at human evolutionary history, he has realized that with the onset of the discovery of fire and the likely-accidental dropping of raw meat into the fire, our ancestors stumbled upon something that would change human history.
Cooked meat not only tasted better, but it made the food easier to digest and get more calories from. Getting more calories from the same food meant that these ancestors had more time to concentrate on other things, like thinking. So our brains grew because of the food, we lost our fur since we had fire and in the end, we became the humans we are today.
And it was all because of meat.
For thinking of such an incredible theory and writing a book to back it up, Richard Wrangham, you are a true Unvegan Hero!