Meerkat pups first emerge from their birth burrow at the age of 2-3 weeks. They weigh approx. 100 g at this stage. They will stay at the burrow, being guarded by babysitters. In most cases the group will move to another, clean burrow after the pups emerged, carrying the pups along. Pups are given their ID codes by the KMP researchers when they emerge; pups of habituated groups are not afraid of humans.