Kids are born in the spring (late May or early June) after a six-month gestation period. Nannies give birth, usually to a single offspring, after moving to an isolated ledge;" post partum", they lick the kid dry and ingest the placenta. Kids weigh a little over at birth and begin to run and climb (or attempt to do so) within hours. Although lactation is mostly done at one month, kids follow their mothers closely for the first year of life (or until the nanny gives birth again, if this does not occur the next breeding season); nannies protect their young by leading them out of danger, standing over them when faced by predators, and positioning themselves below their kids on steep slopes to stop freefalls.