Geo,
great shots and good documentation. For those of us who breed dogs, this is not particularly graphic nor in poor taste. Heck, I've held two coupled dogs together for 20 minutes and didn't find that particularly disgusting either. Tiring, yes. But the end result is always worth the effort.
The current cub is very sweet. Great park as well. Reminds me of one in Louisville with good space and great places to actually photograph the animals.
Good post.
Jim