The keepers are trying a new strategy to get the koalas mating - they have paired up two couples in separate enclosures. But aggression soon threatens the breeding programme. Show more
Discover 11,128,835 listings and 280,255 playable programmes from the BBC
The keepers are trying a new strategy to get the koalas mating - they have paired up two couples in separate enclosures. But aggression soon threatens the breeding programme. Show more