Rhododendrons are a genus of flowering plants found primarily in the northern hemisphere and introduced to Britain in the late 18th century. Some types are now a pest in Britain, because they out-compete many native plants and, because their leaves contain toxins that some animals find inedible, their spread is hard to control. Honey made from rhododendron pollen or nectar can cause hallucinations, loss of co-ordination and vertigo, but only if it has been made by the bees very recently. This is known as mad honey disease!
Scientific name: Rhododendron
Advanced time-lapse tracking technology shows the arrival of spring in the Himalayas.
Common in adverts but never used for natural history before, the motion control system (MOSYS) allowed simultaneous panning and time-lapse. Laser readings of the movement and tilt are cross-referenced in a computer head to record the camera's position to the nearest 1/10mm. Its 85kg weight means road access to the location is vital.
Take a trip through the natural world with our themed collections of video clips from the natural history archive.