So NASA once used spider as guinea pigs to see what happens when you give them various substances. Fascinating stuff
Also, dug up some old articles on roaming cats from the BBC and ABC Australia. Interesting study and there have also been some newer studies on that as well, such as this one out of Denmark.
Was a bit hard to dig up the studies on roaming cats as the search engines kept thinking I was looking for buying guides for cat trackers even though I had “study” in the search query. It’s getting harder and harder to make search engines behave these days 😛