Bioships lore

• Devastation of Baal:

"The variety of vessels beggared belief. Some were like slugs, others looked like void whales. There were examples that bore a passing resemblance to sea creatures, scaled up a million times. There were ships with massive blades at the front, or armoured beaks. Ships with tentacles predominated, but others had horned rams for prows, or carried super-sized versions of biocannons weilded by the carnifexes or tervigons fixed in giant, never-closing maws. There were ships with flippers, ships with tails, ships with atrophied arms and legs. Many had monstrously long tails. Some were armoured with the segmented chitinous plate common to most tyranid organisms, albeit on a massive scale, others seemed to have no protection other than a leathery hide. Every possible permutation of life was there, but all melded, changed, bent to the hive mind’s will. In their diversity was an awful uniformity."

• Devastation of Baal:

"The Blade of Vengeance groaned as engines forced it down. The hive ship loomed ahead. It was a true leviathan of the void, twenty miles long and three across. Impacts flared all over its shell. Four strike cruisers harried it, all aiming for the front. Bellerophon could not bring himself to call it a prow. At the base of two vast mandibles spread wide like shears was a cluster of red-brown eyes and a tiny, tentacled mouth."