Madagascar (TV series) in March 2011. In this one-off programme, David Attenborough undertakes a personal journey back to Madagascar to investigate the fate of "Aepyornis", the island's extinct elephant birds. Believed to be the largest birds which have ever lived, evidence of their existence can still be found on the island. Whilst filming "Zoo Quest to Madagascar" in 1961, Attenborough pieced together a complete elephant bird egg from fragments of shell collected for him. "Madagascar" was first announced in March 2009 as a partnership between Animal Planet and BBC Worldwide. Production duties were handled by the BBC Natural History Unit in Bristol, with
Borneo elephant Museum of Natural History disagreed in 1943, and placed all Sundaic elephants in the subspecies "Elephas maximus sumatrensis". In 1950, Paules Edward Pieris Deraniyagala described a subspecies "Elephas maximus borneensis", taking as his type an illustration in the National Geographical Magazine. In 2003, the debate was re-opened by a suggestion that the introduced Sulu elephants and the north-east Borneo population might have descended from the now extinct Javan elephant, which was named "Elephas maximus sondaicus" by Deraniyagala. This hypothesis is based on missing archaeological evidence of long term elephant habitation in Borneo, a corroboration in folklore and that elephants have