Sputnik 10 launched 1961 with Zvezdochka (space dog safely recovered!)

Sputnik 10 (or Korabl-Sputnik 5 in the west) launched March 25, 1961, carrying Zvezdochka, a small dog who was recovered safely.  The mission also carried a mannequin, which was ejected upon descent to test the ejector seat.  It was also recovered without damage.

Zvezdochka's flight lasted only an hour and forty-six minutes but took rescuers 24 hours to find the capsule.  The landing occurred during a snowstorm so it took rescuers a while to find out where Zvezdochka touched down.

There isn't much information on Zvezdochka, not even its sex.  From the picture above and the video below, Zvezdochka looks like she(?) is a terrier-chihuahua mix.