Midnight Express

Cambridge, United Kingdom: Rowers train on the Cam at sunrise, as early morning mist hangs over the water. Photo: Joe Giddens/PA.

Casting out nines

Cambridge, England: A still from a video issued by the University of Cambridge of a sheep looking at a picture of Emma Watson during a celebrity-spotting experiment to see if the animals could be trained to recognise human faces from photographic portraits. Photo: University of Cambridge/PA.

Four Plus One

Cambridge, England: A swan on the River Cam. Photo: Chris Radburn/PA.