Anita started to talk at 9 months and was speaking fluently by the time she was 1 year old; she crawled at 13 months and was walking at 15 months. Xenia started to talk at 14 months and was speaking fluently just after her second birthday; she crawled at 10 months and was walking by her first birthday. One theory of childhood amnesia might predict that will have memories from an earlier age because of her .