This as-told-to essay is based on a conversation with Tracey Kahn, 61, a publicist and the owner of a fine jewelry company in New York City. It has been edited for length and clarity. I'd always ...

But CrowdScience listener Jonathan wants to know what happened to the tangerines he ate as a child in the 1960s? He remembers a fruit that was juicy, sweet and full of pips, found each Christmas at ...