With its 35 million monthly unique visitors, it's no surprise that Reddit users stumble upon some of the most fascinating articles on the web. The content sometimes leads to careful scrutiny, educated debate or additional information others may not have known.
This week, Reddit had a lot to say about nature, which led to some interesting discussions: the biomass of ants on Earth and koala bear fingerprints, among others.
Here are five facts you may or may not have already known, sparked from discussions on Reddit.