BBC News - Huge six-legged robot built in UK by enthusiast
Robot Launchpad stashed this in +Robots+
Stashed in: Robots!
And there's something similar in Boston too. Better get building!
Is there a benefit to having six legs?
Other than making it look more like an insect?
Stability and versatility. 3 legs can be in air while 3 are on ground - allowing shape that is most stable while letting legs lift high to clamber over things.