First, let us guarantee to you that this photo is 100% genuine. These smiley faces haven't been painted on by some bored kid, but were actually like that when the carrot was cut open. How? We don't know. It's just one of those eternal enigmas that will never be solved. Either that, or the genetic modification of our food has really gone too far.
This reminds, actually, us of all those times people found Jesus burnt into their toast or the Virgin Mary in their Cheerios or whatever. Granted, this smiley face is a bit more distinctive than those, but it's a similar concept. Maybe God has stopped messing with us, and is just sending us emojis now. A smiley face for a job well done.