Being rooted, plants have very little opportunity to travel. They can as pollen to find a mate, and also as seeds. In the case of Cardamine hirsuta, that travel is explosive. The plant stores energy in the pericarp of the fruit. When fruit pod fractures, all that energy is released in one moment, flinging the seeds up to five metres away. While there has been research on the mechanism for explosive seed dispersal, there hasn’t been so much work on how the seeds are adapted. Until now.