African painted dog K'mana is pregnant with Chester's first ever litter of this endangered species. Meanwhile, can atlas moths Dave and Simon find mates during their five-day lifespan? Plus: okapis.

Chameleons Charles and Eddie try to impress new arrival Ruby. Orangutan sisters Emma and Subis are expecting babies by male Puluh at the same time. The aardvarks are making the new meerkats anxious.

Young orangutan Tripa is half the size of other orangutans his age. He relies on his mum for everything but can he become independent when she has a new baby? Plus: penguins, beetles and painted dogs.

Giraffe Orla is due to give birth. Orangutan baby Tombol tests his luck with the gibbons. Overconfident ibis chick Professor X gets into trouble. Can a timid sengi take over his dad's breeding duties?

The keepers struggle to transport a suspicious warthog and a giraffe. Caiman lizard Gary keeps diving into the pool headfirst, even when it's empty. A baby gibbon is a passion killer for its parents.

Spider monkey Kiara seems more interested in hanging out with the youngsters than looking after her baby. Baby capybara Henry enjoys having the attention of all the female capybaras.