Rare, and cute, Vietnamese Mossy Frogs bred in captivity for the first time last year.

Rrrrribit!

The tiny creatures were first discovered in North Vietnam in 1903. 

Mossy Frogs have been described as having one of the 'best camouflages' of the amphibian world.

Covered with mottled green and brown skin, the Vietnamese animals are almost indistinguishable from lumps of moss.

The species has been listed as 'threatened' by the International Union for Conservation of Nature, and the frogs are currently protected by the Vietnamese government.

'Originating from the steep mountain slopes of Northern Vietnam, due to their remote location, they have been out of reach for scientists and researchers for decades and very little is known about this species in the wild.'