One of the smallest deers in the world, a Southern pudu, has given birth in Belfast Zoo.

Baby Caju a three-week-old Chilean pudu - the first of his species born in captivity in the UK - has now been revealed to visitors.

Even when fully grown litte Caju will only measure 45cm high and weigh 14kg.

Zoo Keeper, Raymond Robinson said: "He is very small and can be difficult to spot but is having great fun running around his enclosure.

"Caju is a great addition to the zoo. Our male pudu arrived in 2004 and our female arrived in 2008, and it’s great to have a baby already."