A new baby is always a cause for excitement - and even more so when the baby is a critically endangered species.
Keepers at London zoo are celebrating the healthy birth of a baby male western lowland gorilla to 22-year-old mother Effie.
Her young has not yet been named.
Gorilla keeper Glynn Hennessy said that mother and baby "are both looking well so far".
"Effie is keeping the infant close and as she is a new mum we're keeping a close eye on both of them," he said.
The baby was born in the early hours of Wednesday after an eight-and-a-half month pregnancy, the Zoological Society of London (ZSL) announced.
It is the second born to Kumbuka, London Zoo's silverback male.
The zoo said captive breeding programmes could help preserve the future of the western lowland gorilla, which is critically endangered in the wild.
The gorillas are found in the wild in the tropical rainforests of African countries including Congo, Central African Republic, Cameroon and Gabon.
They are threatened by illegal hunting, disease, habitat loss and degradation.