Humans have always peed and pooped, but where it goes after we’ve done our business has changed a lot. In fact: The water you just drank may well have been a part of someone’s urine just weeks ago! SciShow explains! [SciShow]

SmarterEveryDay shows (in slow motion) and explains the science behind the Mantis Shrimp’s incredibly destructive sonic boom punch. Guile (Street Fighter) would get totally owned by a larger version of this little guy. [SmarterEveryDay]

Greg Foot tells us exactly why we hate the sound of our own voice on answering machines and such like in this Headsqueeze single question science video. [Head Squeeze | Via]

What alcohol does… and doesn’t do to your brain cells. Drink responsibly! [SciShow]

This is for all you coffee or caffeine lovers out there! Whether it’s coffee or another form or caffeine intake, we all need an energy boost at times! But how exactly is it affecting your brain? And could too much kill you? Check out this video to find out! [ASAP Science]

Watch as Minute Physics explains the science behind balancing an object on its tip. The math behind the whole thing is really complex. Check it out! [Minute Physics]

Warning: Language. A new video from Ze Frank’s “True Facts” series on animals. Hilarious and gross, as usual. [zefrank1]

Learn about the role of the sea in global warming. The global conveyer belt is part of the large-scale ocean circulation that is driven by differences in the density of the waters. It plays a key role in keeping the climate at balance and Europe warm. Global warming may change it forever with unforeseeable consequences. […]