A new study shows that flowers have evolved over the past three decades to have less sex—possibly in response to the disappearance of bees. It could be a death spiral for some species. Here’s my story. Gift link: https://www.nytimes.com/2024/01/04/science/flower-sex-evolution-bees.html?mwgrp=a-dbar&unlocked_article_code=1.LE0._inN.7uQQgiu7kYGW&smid=url-share