Luka, an almost two-year-old male polar bear, swims in his new home at the zoo in Wuppertal, Germany. Born in the Netherlands, Luka has moved to Germany to be a companion for female polar bear Anori, who is the same age.
A Siberian tiger takes a swim in its outdoor enclosure at Duisburg zoo, Germany, on Tuesday Read more
Lynne Cameron/PA Wire
Liam Tancock takes part in the men’s open 100m backstroke on the first day of the British Gas Swimming Championships at Ponds Forge sports centre, Sheffield.
A Free Syrian Army fighter dives into a swimming pool inside a house in the old city of Aleppo, Syria, on Monday Read more
A man swims in the polluted waters of river Yamuna on Wednesday. Temperatures in New Delhi reached 43C, according to India’s meteorological department