I just adopted a 6-week old puppy, who is now almost 7 weeks. (I didn't realize at the time that getting a puppy at that age is not good, and I don't know why the rescue organization did not wait 2 more weeks). She looks like a lab, I've seen the mom and she is a little leaner and longer than a lab but same height, dad is unknown. I'm wondering if she may have some shepherd in her, since she likes to get underfoot, and is very driven to nip at the kids legs. She's getting better, and neither behavior is a huge problem, but she's been stepped on a couple times because of getting right underfoot. When running around with her she'll try to run right up beside you and get in front of your feet. And the determined nipping is annoying, I know she'll grow out of it with some training and guidance. My question is- Is this normal behavior for this age? Or does it sound like she may have some herding drive? Any suggestions on the best way to minimize her drive to "herd" the kids by nipping? Thanks!!