You might not think much about what happens to your pee after you flush it down the toilet, but it turns out it has a major impact on the way fish behave. More on that and 30 other fascinating facts about this planet of ours below…
18 Sci-Fi-Looking Places (Here On Earth)
15 Countries We Picture Wrong Side By Side With Reality
25 Mistakenly-Pictured Parts Of The World
20 Bizarre Ways Humans Are Permanently Changing The Planet
27 Things Which Only Exist In One Place