A couple of videos of the puppies at 4-5 weeks:

[embedyt] https://www.youtube.com/watch?v=CXRMlNcVAek[/embedyt]

[embedyt] https://www.youtube.com/watch?v=dtlewzgIJ6M[/embedyt]

[embedyt] https://www.youtube.com/watch?v=WIlYu40i5lM[/embedyt]