Tooth development and weaning in chimpanzees not closely related.

According to a new study,tooth development and weaning in chimpanzees not closely related as earlier studies have suggested. Studies have linked juvenile chimps' tooth development with their weaning as a rough proxy for understanding similar developmental landmarks in the evolution of early humans. The new research from Harvard, is challenging those conclusions by showing that tooth development and weaning aren't as closely related as previously thought. The scientists used digital photographs to show that, after the eruption of their first molar tooth, many juvenile chimps continue to nurse as much, if not more, than they had in the past.