..squaring off

Oh, not to be alarmed.  Ralphy and Bear are just trying our for a role in NatGeo.  They are best of friends and even though it looks dangerous, they are just playing.  Not once have they bitten each other.  I do notice they take turns being the alpha male.  Now that Bear is much bigger, Ralphy usually gets a bit more aggressive at first to remind Bear he is still boss.  In the coming years, this may only be a pipe dream for Ralphy, so it is good they are friends.