They are mostly solitary mammals and only come together for mating. Even though they are nocturnal, they sometimes come out during the day to sun themselves. Since their eyesight is limited the aardvark is always cautious when leaving their burrow to forage for termites. When leaving their burrow, they will stand at the entrance, motionless, for several minutes and continue forward with numerous powerful leaps until there are no sounds or threats. They will then move at a slow trot looking for food. When aardvarks sleep, they block out the entrance to their burrow, leaving only a very small opening at the top, and curl into a tight ball. They frequently dig new burrows, which many other animals use the past burrows as shelters. Females tend to stay in the same area whereas males wander more.