Bumblebees speed up flowering
Bumblebees speed up flowering: If they find too little pollen, they pierce the leaves of non-flowering plants in order to force them to produce flowers more quickly.
When pollen is in short supply, bumblebees damage plant leaves in a way that accelerates flower production. This was discovered by an ETH Zurich research team led by professor Consuelo De Moraes and Mark Mescher.
Link to video
https://www.youtube.com/watch?v=jJDaIiWLYEo