The findings are the exact opposite of sibling rivalry. When plants are around sibling plants, nutrients are shared, and all are able to grow equally. But when a plant senses a "stranger," it grows more roots and competes for water with that unknown plant. It also refuses to take candy from the stranger plant or to get in its car.
The fact that plants can recognize family isn't so crazy, is it? What will really blow my mind is if the research continues and finds that during the holiday season, plants sharing space near family drink more and focus almost exclusively on personal breathing exercises.