The CeBIT trade fair in Hannover, Germany has it's usual share of bots of all shapes and sizes - here's a glimpse of what's on show.

The is Charlie, an ape-like bot that can crawl on all fours like a primate.

Its creators, from the German iStruct (intelligent Structures for Mobile Robots) project, say it is the first robot to be equipped with an actuated spine and feet that can "feel", allowing it to retain its balance when knocked or tilted.

Researchers hope that Charlie's descendants could traverse uneven terrain, such as craters on the Moon in search of frozen water.