Tracy L. Lewis, “The Cell Biology of Sponges”, 2011 was the topic of an earlier blog post.
Here I present: Theodore Schwenk, “Sensitive Chaos”, 1965.
The “preface” of this book was written by Jacques Cousteau (shown ABOVE). Theodore Schwenk was the director of an Institute located at Herrischried, GERMANY in the Black Forest for the study of movement in Water.
BELOW is a photograph of a “barrel sponge” attached to the sea bottom. The diver swimming beside the “barrel sponge” gives one a sense of size of this animal.
The 15 cell types that constitute the “wall anatomy” of sponge (poriferan) are shown BELOW.
Note the “flagellum” in the poriferan wall moves water through the animal. Spawning occurs by the “flagellum” pumping gamete cells (egg & sperm) out the sponge body.
