The Secret Life of Penguins
The secret life of pengiuns has finally been discovered.
Until now, no-one knew where the sub-Antarctic rockhopper and Snares penguins went, while they were at sea between April and October each year.
But a tagging project has found the penguins travelled more than 15,000km in six months.
The images in this gallery are used with permission and are subject to copyright conditions.