Sexing two day old pups, Lockdown Litter Update #2.1 Posted on 26 Mar 2020 by Ryan David Tuttle Posted in VideosTagged breeding, fancy mice, genetics, mice, Sexing mice, Sexing pups Share this:Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Reddit (Opens in new window)Like this:Like Loading...