Apparently their young are called "puggles" - how sweet!
I took this photograph at Cleland Park in South Australia but I was fortunate enough one evening, on a walk with my son in Kuitpo Forest to see one in the wild. My son had heard a noise and motioned to me to stay quiet but to follow him and there it was, trundling along through the undergrowth, oblivious of our presence. We left him to it. more details about echidnas here,
I always feel privileged when I see animals in their natural habitat and was thrilled, though slightly irritated with myself as it was one of the few occasions that I hadn't bothered to carry my camera!