There is a fantastic visualization of this on the show Cosmos (the Neil Degrasse Tyson version) on the evolution episode (how molecules work was the name of the episode if I recall)

Sorry I can't give you a great scientific answer but if you're looking for a surface level explanation it should help.

that's crazy. Then again you're talking to someone that gets a little nervous when a deer is close by

Spring is nice and all but I've wasted much more time than was necessary practicing being big and loud in case of encountering a bear on a trail.

I won't get my time spent doing that back and you won't get your time reading this comment back. We've all lost.