Lemmus - behavior notes 15 June, Barrow, Alaska We now have 6 live animals in the lab. I show 3 subadults, 1872 77, together in a terrarium 12 x 24 x 14 high with grass and rod. They have been together since 9 June. After a few hours of initial fighting at each other - no more fights occurred - they have settled down and are living peacefully together. Several times I have seen two of them playing with each other standing up on hindfeet and boxing with forelegs, but this appears to be play more than serious fighting. There is a sharp alarm squeak for new meeting initial encounters or when suddenly approached by one another, and there is a soft kind of chitter - almost conversational in sound - which I think is used only by the 77 in his approaches to the 77. So far I have not observed copulation, but yesterday, one of the 77 had a little blood around their vagina. Yesterday I put an adult 7 and 87 together in the same size terrarium - also with grass and rod. The 87 has tried several times to approach 7, but she gives the sharp squeak and fights him off with her forefeet. I have not seen teeth