N.B. Het kan zijn dat elementen ontbreken aan deze printversie. Pijlsnel langs de zeeluipaarden het water uit 19 januari 2013 Runner-up. When an emperor penguin returns to the colony after a fishing trip, exiting from the sea as swiftly as possible is a matter of urgency. To hang around could make it a target for any leopard seal lying in wait. â€˜I had been diving under the ice for a while,â€™ says Paul, â€˜waiting for the penguins to arrive at the ice exit hole, when suddenly I realised they were emerging from the depths â€“ and at incredible speed.â€™ Recent research, based on analysing clips from a BBC film, has shown that as emperor penguins accelerate to their exit, they release millions of micro-bubbles from their feathers, which reduces the friction of their plumage against the water and helps them achieve maximum speed. This photograph captures the phenomenon perfectly. â€˜The penguin shot up, bubbles bursting from its bill and the feathers on its head, belly and back, looking like a rocket blasted from the depths,â€™ says Paul, who is one of the few people to be able to appreciate first hand how penguins use air to â€˜lubricateâ€™ their ascent.