This half term families visiting Colchester Zoo will be in with the chance catching a rare glimpse of twin Amur leopard cubs who are now starting to explore their outdoor enclosure.

East Anglian Daily Times: Captured on cub cam - the rare Amur leopard cubs are almost six weeks old Picture: COLCHESTER ZOOCaptured on cub cam - the rare Amur leopard cubs are almost six weeks old Picture: COLCHESTER ZOO (Image: Archant)

The cubs, who are now almost six weeks old, have taken their first tentative steps outside under the watchful eye of their mum Esra.

A spokeswoman for Colchester Zoo said: "Esra is still a little unsure about giving them free rein and is returning them back to their private cubbing den when she feels the time is right - therefore viewing of these delightful cubs is not guaranteed.

"We are politely asking that visitors remain as quiet as possible whilst viewing the leopards and not to use any flash photography."

The cubs first opened their eyes at nine days old but their gender will not be known until their vaccinations are given in six weeks time.

This is the first time the zoo has bred Amur leopards, which are critically endangered.

Read more: WATCH - Excitement as rare leopard cubs are born at Colchester Zoo