A tiny Kirk’s dik-dik antelope which was hand-reared by keepers at Chester Zoo after being rejected by her mum has stepped in to help her much smaller sibling.

Eight-month-old little Aluna is  playing the big sister to new arrival  Neo, giving him lots of the special  care she herself received after she  was born.

The mini dik diks - one of the  smallest species of antelope in the  world - have struck up a charming  bond and Aluna is taking her new  duties in her somewhat short stride.

Keeper Claire McPhee said:  "Dik-dik mothers do not always take  to their young and unfortunately Neo  and his mum didn’t quite hit it off.

“But happily his not-so-big sister  Aluna - who herself didn’t manage to  bond with her mum - is drawing on  her own experiences and is being a  real calming influence on him.

They spend lots and lots of time in  each other’s company and she’s  really helping with his development  in his crucial early days.

“Little Neo is only 20cms-tall and a  little bit shy, nervous and jumpy around other dik diks.

But Aluna is dishing out lots of  special care and attention and it’s  helping him integrate into the wider  family group. She’s helping him to  settle in nicely and it’s lovely to  see.”

Keepers chose the name Neo as it  means ‘gift’ in Swahili.

The Kirk's dik-dik is native to  Kenya, Tanzania and Namibia and is  named after the sound it makes when  fleeing danger. They can live for up to  10 years and reach a maximum size  of just 40cm tall, making it one of the  smallest antelope species in the  world.

Fun facts about Neo and Aluna:

Neo was born on 10/10/2013

He weighs little more than a bag of  sugar, around 1.3kgs. At birth he was  750g

He is 22cms (8 inches) tall

Adults grow to around 40cm tall

Kirk’s dik-dik are one of the  world’s smallest antelope species

They lives in a variety of habitats  such as woodlands and grasslands

Only the males have horns

Kirk’s dik-dik arrived at Chester  Zoo in 2008

Aluna was born in Feb 2013. She  was bottle-fed milk five times a day  by the zoo’s dedicated curator of  mammals Tim Rowlands after she  failed to bond with her mother. She  was given a helping hand until she  was old enough to tuck into a diet of  buds, shoots and fruit on her own.

Aluna means ‘come here’ in  Swahili