I think some puppies are more 'mouthy' than others. Snoopy has never been much of a biter, but his littermate (my son & DIL have him) was like Jaws as a puppy!
There is a lot of advice on here about what to do with puppy biting, from yelping and ignoring them for a minute, spraying yourself with bitter apple (a nasty tasting spray that you can get at pet stores), to pinning them on the ground to enforce your leadership. I'll let the experts deal with that!
And welcome! Yorkies and YT are the best!
