PROF. DENDY'S memoir (in Acta Zoologica, 1921, pp. 95-152, 50 figures) on the evolution of the tetraxonid sponge-spicule will appeal equally to those interested in problems of evolution or in ...
A team of researchers with members from France, Germany and Israel has found that proteins that make up axial filaments are responsible for the means by which sea sponges develop glass skeletons. In ...