Here's what your food would look like if it weren't genetically modified over millennia

Next time you bite into a slice of watermelon or a cob of corn, consider this: These familiar fruits and veggies didn't always look and taste this way.

Genetically modified foods, or GMOs, inspire strong reactions nowadays, but humans have been tweaking the genetics of our favorite produce for millennia.

From bananas to eggplant, here are some of the foods that looked totally different before humans first started growing them for food.