Do captive mice run in their wheel because they are neurotic and stressed? Or is it a natural mouse behavior? Well, it turns out that if you put a running wheel out in the wild, the mice will come. And they will run. Turns out frogs and other animals will join in too. Pretty cool. Read more about the study here, or download the open access paper here.
Note: this does not "prove" that mice in captivity aren't running in a wheel due to stress!
Best video from this story: a slug in a running wheel. Please watch.
Turns out it's a pretty complicated question to answer. We have heard a lot of talk about our microbiome and what kinds of bacteria live in our gut, helping us digest our food, but also aiding our immune system. In this guest post in Scientific American, Tami Lieberman walks us through the process of getting your poop's microbiome analyzed - so many questions: where do you do this? how do you even sample feces? what do the results tell us? you will now know).