wellesley college
How some plants spread their seeds: Ready, set, catapult
Catapults are often associated with a medieval means of destruction, but for some plants, they are an effective way to launch new life. Dispersing seeds greater distances by catapulting can provide selective advantages, including the establish…
How lead gets into urban vegetable gardens
Boulder, CO, USA – One common mitigation approach is to build a raised bed and fill it with freshly composted, low-lead soil from elsewhere, right? Maybe not, according to researchers studying the mysterious case of the lead contamination found with…