These findings could be used to prevent plant inbreeding and promote genetic diversity in future conservation efforts. And the reduced genetic diversity of inbred plants can threaten future generations. Recently, Daniel Schoen from McGill University and Rachel Tocydlowski from the USDA Forest Service studied jewelweed populations to see what those flashy colors could be hiding. A question emerged: Could this variation in demographic history explain differences in genetic diversity among jewelweed populations? That’s the hidden danger this study reveals—a jewelweed population can look perfectly healthy while its genome tells a very different story.