Present on an immensely larger scale and in far greater variety. In the tropical zone close to the contorted walls of the 'castle' were delicate spidery structures that seemed to be the analogy of plants though almost all were capable of movement. Crawling among these were bizarre slugs and worms some feeding on the plants others obtaining their food directly from the mineral-laden waters around them. At greater distances from the source of heat - the submarine fire around which all the creatures... read more
