A file photo Taronga Zoo's elephant calf Pathi Harn after his miracle birth after being pronounced dead during labour and which caused a nationwide sensation, in Sydney.- Photo by AFP

A female keeper was rushed to hospital in a critical condition on October 19, 2012, after being pinned against a bollard by Pathi Harn at the Zoo. – Photo by AFP

The zoo said the woman was conducting a routine training session when “a young male elephant pinned the female keeper against a bollard.” – Photo by AFP

San Diego Zoo veterinarians look on as the Zoo's 11-week-old giant panda cub takes baby steps during a morning veterinary examination at the zoo. – Photo by Reuters

Chester Zoo vet Gabby Drake examines a Dormouse after microchipping it as part of a multi-agency conservation project in North Wales. The Dormice, which are native to the UK, are being marked and monitored in a programme aimed at improving conservation methods in the area. – Photo by Reuters

Meerkats at the zoo in Leipzig, eastern Germany, inspect a carved pumpkin filled with flour worms and straw. Suited to the upcoming Halloween holiday, the animals' enclosure is decorated with pumpkins and delights meerkats and visitors. – Photo by AFP

A vet holds a new-born cheetah prior to weighing it the Palmyre zoo in Les Mathes, western France. Three cheetahs were born at the zoo. – Photo by AFP

A red lionfish (Pterois volitans) swims in the aquarium of the Schonbrunn zoo in the gardens of the Schoenbrunn Palace in Vienna. The red lionfish is a venomous coral reef fish. – Photo by AFP

A newborn western lowland gorilla, cuddles with its mother Bana, 17, at the zoo. The baby has yet to be sexed or named and appears to be doing well. Zookeepers and vets will closely monitor Bana and her baby to ensure they continue to do well, as the first few weeks are critical in the survival of newborn gorillas. – Photo by AP

Panda Fu Hu (Right) eats bamboo at the Schoenbrunn zoo in Vienna, Austria. Fu Hu will be transported to China in November 2012. – Photo by AFP

A chevrotain or mouse deer feeds in its enclosure at Zurich Zoo, Zurich, Switzerland. – Photo by AP

A pacific moon jellyfish (aurelia labiata) swims in the aquarium of the Schoenbrunn zoo in the gardens of the Schoenbrunn Palace in Vienna, Austria. – Photo by AFP

An Eagle Owl is seen inside a cage the Manila Zoo. The historic Manila Zoo, once a major attraction of the Philippines, now finds itself the target of criticism for the condition of its animals, particularly its “star” an elephant named Mali. – Photo by AFP

The two and a half year old giraffe Manja (Right) touches a male giraffe Edgar at the Osnabruck zoo, north-western Germany. – Photo by AFP