5-week-old hippopotamus calf "Muddy" is being watched carefully by her mother Primrose at their enclosure at Werribee Open Range Zoo in Melbourne, Australia.

Wild birds try to eat grains of rice in a field about 260km east of Montevideo, Uruguay.

Rolls of photovoltaic solar panels displayed on the roof of a warehouse in Laudu-L'Ardoise in Southern France.

Members of Teatro de Altura perform beside the Cathedral in Seville, Spain, as part of the international theatre festival.

A family of Bornean pygmy elephants are seen in Danum Valley Conservation Area in Sabah.

Igorot tribesmen race their wooden scooters in the northern Philippine town of Banaue during a competition.

A tourist poses beside a gesturing hand in front of the Guanyin of the South Sea statue in Sanya in southern China's Hainan Province.

A trainer feeds Luigi, an adult male Harpy eagle born and raised in captivity at the National Association for the Conservation of Nature (ANCON) near Panama City.

Terracotta warriors and horses on display during the "Soldiers of Eternity, the Xi'an Warriors" exhibition at the Pinacotheque in Paris.

Petrobras workers pose in front of P-52 oil platform during its launching ceremony in Angra dos Reis, about 300km south of Rio de Janeiro, Brazil.