- [Narrator] Keeper Mary is looking after newest arrival, Kisima.

- [Mary] Kisima, Kisima, Kisima.

She's doing well.

She's friendly to keepers, and she's now learning how to browse.

She's still very young, but she's bright girl.

She follows me wherever I go.

She always want to be with me.

When I try to go away, she just cry.

I don't know what she's feeling, but I think inside sad.

I think, I don't know.

She's feeling abandoned.

- [Narrator] Helping orphans through their fear and loneliness is part of everyday life here.

(zebras braying) - [Mary] She fear these big boys and girls.

- [Narrator] Mary is helping ease the young zebra's separation anxiety, gently encouraging her to bond with the other animals.

And one of them knows that struggle well.

Long'uro lost his trunk in a hyena attack when he was just a month old and found it difficult to bond with other elephants.

Long'uro's come a long way, learning to play and connect with his herd, but after receiving so much one-on-one care to help him adapt- - Long'uro, Long'uro!

Long'uro.

Stop it.

- [Narrator] He's become a little territorial.

- This boy is very jealous.

Long'uro is not happy to see me with another baby.

(speaking indistinctly) Stay.

I don't want that behavior.

I think he's feeling, my mother got another baby to take care of.

The time will come that they will interact together and they will be friends.

- [Narrator] Integration isn't always easy.

Kisima struggled at first, but with time, she's found her footing among the other animals.

- She's now doing well.

She's very happy and she's very healthy.

They're now browsing together.

I think she's learning a lot from the big boys and girls.

So I think they will be great friends here at Reteti.