Authorities in India's Uttar Pradesh state have ordered an investigation into the killing of 31 blackbucks by stray dogs at a zoological park in the city of Kanpur.

BBC: India: Probe into blackbuck killings at Kanpur zoo

Created as the first steppe reserve in the Ukraine in 1888, it comprises a dendrological park of the 19th century and a zoological park with a breeding centre for Przewalski horse, ostriches, aboriginal ungulates and birds.

UNESCO: Biosphere Reserve Information

For instance, the San Diego Zoo received two female Chinese alligators from a zoological park in Florida in early July and wants to start breeding the critically endangered species if they can get a male Chinese alligator next year.

BBC: The dual sides of animal captivity

Now six weeks old, the wolves have still to be sexed by staff at the Royal Zoological Society of Scotland's Highland Wildlife Park at Kincraig.

BBC: Pup and mother Elara

Sadly one of the cubs died, but his brother is now in the collection of the Royal Zoological Society of Scotland's (RZSS) Highland Wildlife Park at Kincraig, near Aviemore.

BBC: What happened to Frozen Planet's bear cub Walker?

Other organisations involved in the water vole reintroduction include the Royal Zoological Society of Scotland, Scottish Natural Heritage, Loch Lomond and the Trossachs National Park and water vole expert Derek Gow.

BBC: Water voles back in the Trossachs

Professor David Waugh, director of The Royal Zoological Society of Scotland, said the bequest would help safeguard the future of the zoo and wildlife park.

BBC: Zoo reopens after disease scare