An official journal of the Society for Biology of Reproduction and the Institute of Animal Reproduction and Food Research of Polish Academy of Sciences in Olsztyn, PolandReproductive Biology is an international, peer-reviewed journal covering all aspects of reproduction in vertebrates. The journal invites original research papers, short communications, review articles and commentaries dealing with reproductive physiology, endocrinology, immunology, molecular and cellular biology, receptor studies, animal breeding as well as andrology, embryology, infertility, assisted reproduction and contraception. Papers from both basic and clinical research will be considered.