17 May 2011
Vol 4, Issue 173

About The Cover

Cover image expansion

Online Cover This week features a Research Article that describes how sperm acquire molecules involved in calcium signaling from vesicles derived from the prostate (prostasomes). This process contributes to sperm motility and male fertility (see the associated Perspective). The image shows an artist's rendition of the interaction between sperm and prostasomes. [Image: Yana Hammond, Science Signaling]