The week in wildlife

Havana, Cuba: Flamingos at the flora and fauna stand during the inauguration of the International Business Fair Photograph: Enrique De La Osa/Reuters

Cairo, Egypt: Lovebirds in a cage eye look at a stray bird which is looking for food. Lovebirds are popular pets in Egypt but many owners released their captive birds at the beginning of the bird flu epidemic two years ago Photograph: Mike Nelson/EPA

Rostock, Germany: A two-and-a-half-month old lion lays beside its mother in their enclosure at the zoo Photograph: Danny Gohlke/AFP

Sofia, Bulgaria: A man walks in a park on a warm autumn day Photograph: Stoyan Nenov/Reuters

Ljubljana, Slovenia: A squirrel in Tivoli park Photograph: Srdjan Zivulovic/Reuters

Mexico City, Mexico: An axolotl salamander, or Ambystoma mexicanum, swims in a tank at the Chapultepec zoo

Mexico City, Mexico: An axolotl salamander (Ambystoma mexicanum) swims in a tank at the Chapultepec zoo. Scientists warn that the amphibian is just a few years away from extinction, a victim of the draining of its lake habitat, deteriorating water quality and the invasion of non-native fish species that are eating its eggs and larva, and competing with it for food Photograph: Dario Lopez-Mills/AP

Ayutthaya, Thailand: Elephants walk along a flooded road, near the Lopburi river, into the Royal Elephant Kraal Photograph: Sukree Sukplang/Reuters

Delhi, India: A blackbuck at its enclosure at the national zoological park. The zoo was set up in 1959 and is spread over an area of 214 acres. There are more than 2,000 animals and bird species from Africa, America and Australia and Asia Photograph: Anindito Mukherjee/EPA

New Orleans, US: A gopher frog sits in the hand of Audubon zoo curator Nick Hanna. For the first time in 10 years, a pond in south Mississippi got enough rain this year to let gopher frogs, one of the nation's most endangered animals, turn from tadpole to frog without human help Photograph: Bill Haber/AP

Kobe, Japan: A cloned mouse created with a new technology by using a dead cell of a mouse that had been preserved at minus -20C (-4F) a temperature similar to frozen ground. Japanese scientists said November 4 they had created a mouse from a dead cell frozen for 16 years, taking a step in the long impossible dream of bringing back extinct animals such as mammoths Photograph: Teruhiko Wakayama/AFP

Jakarta, Indonesia: A monkey is chained on its cage before it is trained for a monkey circus. Monkey circus or "topeng monyet" is very popular and the most original form of entertainment in Indonesia especially in Java Photograph: Adi Weda/EPA