I'm back home from my latest grad school interview, and while I definitely will not be going there for grad school, I did have a half hour chat with a scientist who studies human gut microbiota.

She didn't have any groundbreaking results to share, but it did sound like flagellated bacteria (as in, having flagella, which are tail-like protrusions that help bacteria swim around and sense things about their environment) may become a hot topic in understanding the link between the bacteria that live in our digestive tract and the size of our waistlines.

Well, that's my fun fact of the day. Happy Sparking!