1People hold candles during an event attempting to establish a Guinness world record for 'blowing out the most number of candles simultaneously' during Earth Hour in Shanghai.
2Ged Robinson (L) of Australia's Melbourne Rebels tackles Louis Ludik of South Africa's Sharks during their Super 15 rugby match in Durban, South Africa.
3Young giraffe named 'Jamiro' stands next to its mother 'Arusha' in their enclosure at the animal park in Jaderberg, northern Germany.
4A man gives food to a cat in front of a shop in Aleppo, Syria.