21:32CrowdScienceWhy do we have wisdom teeth?BBC World Service Duration: 29 minutes Fri 23rd Feb 2024, 21:32 on BBC World Service News InternetAvailable for over a yearListen nowAnswering your questions about life, Earth and the universe Show more GenresFactualScience & NatureScience & TechnologyFormatsDiscussion & TalkBrandCrowdScience Source: BBC Online