Josh 7 months and crawling

The last 2 months have been busy for Joshua!  He's gotten 4 teeth, learned to crawl, and is now standing up! GEEZ!!

I have to say I honestly am surprised, shocked, not ready for this...but Joshua is crawling like a crazy little man.... {whatever that really looks like?!} AND he is standing up- pulling himself up on the furniture... WHAT?! he is not even 8 months old yet...
My friends all say "that's a boy for ya"...yikes, what does THAT mean?! and what else is to come with that?

All in all it's been going smoothly, for me anyways, but Josh... well his sissy is not so sure about all of this! Is it a territorial thing or what that the older MUST hit, sit on, pull, push, squash, poke, prod, etc the younger one? I keep telling her she better teach Josh to be nice to one another, because before she knows it he'll be the one doing those things to her! {She doesn't seem to quite care so much about that line of thinking at the moment though}
Josh is holding his own...