LifeGiggling rats reveal the most ticklish part of our brains The neurons involved in the enjoyment of tickling have been discovered in rats, which emit ultrasonic squeals of delight when tickled on their belly or feet News
LifePlants ‘see’ underground by channelling light to their roots Roots of many plants have light receptors, and now we may have discovered why. They seem to channel light underground using stems as fibre-optic cables News