A Surfeit of Knuts?

Yet more tales of German zoos and polar bear cubs (http://www.guardian.co.uk/animalrights/story/0,,2237484,00.html). Apparently, Nuremberg zoo had two lots of cubs produced generating the same kind of debate seen in the case of Berlin zoo's Knut. The first mother (Vilma) had twins that she failed to suckle and a decision was made 'to let Nature take its course'. They duly went missing (presumed eaten). The resultant fuss (largely based around the view that you shouldn't treat the zoo animals like their wild counterparts) resulted in the second mother (Vera) having her cub removed for hand rearing (with its likely attendant consequences).