The week in wildlife

Liala, a 30-year-old African female elephant, watches staff work at Riyadh zoo Photograph: Ali Jarekji/Reuters

A 33-day-old red-flanked lorikeet chick rests in a basket at the breeding and research centre of the Jurong Bird Park in Singapore. The parrot is found in the wild in Indonesia and Papua New Guinea Photograph: Tim Chong/Reuters

African flamingos stand in water during a night event in Ramat Gan safari near Tel Aviv, Israel. Flamingoes often nest in colonies of tens of thousands of birds Photograph: Ariel Schalit/AP

An African crowned crane grooms itself at the Jurong Bird park in Singapore Photograph: Wong Maye-E/AP

Adult mosquitos are seen through a fluorescence microscope at the University of Maryland Biotechnology Institute's Insect Transformation Facility in Rockville, Maryland. The glowing eyes indicate that the mosquitos have been successfully genetically transformed Photograph: Jacquelyn Martin/AP

Corn poppy blossoms on a field near Boetzingen, southern Germany Photograph: Winfried Rothermel/AP

Golden frogs (Phyllobates terribilis) embrace in a wooded area in the Explora park in Medellin, Colombia Photograph: Fredy Amariles/Reuters

Irises in full bloom in the Meiji Shrine inner gardens in downtown Tokyo, Japan Photograph: Everett Kennedy Brown/EPA

A tranquillised elephant is winched aboard a recovery vehicle as rescuers evacuate elephants affected by human-elephant conflict in the southern African country of Malawi Photograph: AP

The National Trust property at Lower Predannack farm, The Lizard, Cornwall. It's 30 years since the first National Trust eco survey, which was taken at Predannack. Photograph: Jim Wileman

More than 4,000 school children gather at Dockweiler State beach in Playa del Rey, California, at the 16th annual Kids Ocean Day. They gathered in the shapes of a fish and words that read "Save our ocean". The students also took park in a beach clean-up Photograph: Michael Owen Baker/AP

An orangutan after swimming through the waters of the Rungan river, in Central Borneo, Indonesia. Orangutans usually avoid the water because they are afraid of predators like crocodiles, are now being forced to swim due to the destruction of their natural habbitat Photograph: Ardiles Rante/Barcroft Media

A wallaby on Inchconachan Island, Loch Lomond. Wallabies are facing a cull to save Scottish wildlife Photograph: Gordon Jack

A crow rests on a pole at a park in Tokyo, Japan. The population of crows in Japan has grown enormously since the 1990s as a result of the increase in litter on the streets. Crows have become a social problem as they become more aggressive towards humans Photograph: Dai Kurokawa/EPA

Aurora, a 20-year-old Beluga whale, swims with her newborn calf after giving birth at the Vancouver Aquarium in Vancouver, British Columbia. Aurora was in labour for about three hours before delivering the calf Photograph: Darryl Dyck/AP

An Oyster catcher bird on its nest in the rhino enclosure at Blair Drummond Safari Park near Stirling is watched by Dorothy the Rhino. Zimbabwe's rhinos are being wiped out amid a surge in poaching driven by Chinese demand for the animals' horns Photograph: Andrew Milligan/PA

Seagulls fly during a thunderstorm in Bucharest, Romania Photograph: Radu Sigheti/Reuters

Snow monkeys groom one another at the Central Park zoo in New York. Studies show that female baboons that form strong social bonds have longer-lived offspring Photograph: Don Emmert/AFP/Getty Images

A worker checks the base of the 1,000-year-old ollow Tree in the heart of Stanley Park Vancouver, British Columbia. The tree which has been a popular tourist stop for over a 100 years is being secured after it became unstable Photograph: Andy Clark/Reuters