distances between mothers and young of different ages and sexes

Each line represents a mother-young pair for a certain age period. Period 1 = 10-13 months, Period 2 = 14-17 months, Period 3 = 18-21 months, Period 4 = 22-25 months, Period 5 = 26-29 months, Period 6 = 30-33 months, Period 7 = 34-37 months, Period 8 = 38-41 months. Young and Mother refer to individuals but are not the tag numbers. Sex 1 = male, Sex 2 = female. Year 1 = 2010-2011, Year 2 = 2011-2012. Distance Mother Moved is from the previous age period.