ELECTRON microscopy has provided evidence for a series of anatomically distinct stages in the process of fertilization. In the polychaete worm Hydroides hexagonus, Colwin and Col win 1,2 have ...

Professor Gary Wessel discussed reproductive technologies in fertilization in the first of a lecture series designed to make science research more accessible for students without extensive science ...

For sea urchins, sex is an out-of-body experience. And in external fertilization, species-specific gamete receptors serve as one way to prevent cross-fertilization. The discovery of an egg protein ...

This short video shows how we obtain eggs and sperm from the tropical sea urchin Lytechinus variegatus. Students Tess Bender and Jessie Spears have been using these eggs and sperm to examine the ...