This Worm Has No Ifs And Many Butts

In the 1870s, as the research ship HMS Challenger passed through the Philippines during its circumnavigation of the Earth, it dredged up a sponge from the gray sludge 95 fathoms (nearly 600 feet) below the surface. The scientists knew that glass sponges abounded in these waters, their bodies fragile, translucent, and curiously geometric. Sponges of this sort often house other animals, such as mono