Tonight on The Zoo we find out how the tiny pygmy marmoset baby Beag has been doing under keeper Susan O’Brien’s watchful eye.
Beag has being doing well but it’s still at a delicate stage in its development and requires round the clock care. We join Susan in her home as she gives one of the world’s smallest little primate a night feed.

Beag, the baby marmoset still needs round the clock care.
Also, in tonight's show Kasi the white-crowned mangabey has been growing bigger and stronger by the day and has even made some new friends amongst her troop. With things going so well, Helen feels the little monkey is almost ready for her full reintroduction.
Meanwhile Brendan the zookeeper takes his love of gorillas to the road and goes in search of gorillas in the rainforests of Africa.
There’s good news on the African Plains as keepers Helen and John are delighted to discover a litter of Red River Hogs have been born overnight.
You can watch all these stories on The Zoo tonight at 7pm on RTÉ One.