Lemmings resemble small hamsters and can be very common, especially when the snow cover stays for a long time giving them places to hide by digging tunnels in the snow.
1989 was not only the year of heavy snow but also a lemming year. On snow free areas, almost every rock had a lemming hiding underneath.
When you catch a lemming, it will shit in trying to free itself. You better wear a glove like Jeffy below.
Jeffy with lemming, shitting in his glove. Eastern Axel Heiberg Island, 1984.