“…From the Type C twin placentation described by Rapacz‐Leonard and Paździor‐Czapula (2022), in the present issue, to the increasing appearance of reports mentioning monochorionic twin placentation in the horse, such anomalies are both intriguing and worthy of discussion to better understand the tribulations of the fetus in utero . They also provide a timely reminder that there is no room for complacency when undertaking ultrasound pregnancy examinations in the mare as there is always the possibility of a twin pregnancy, even when only a single ovulation has been noted, or a single in vivo derived or IVP embryo has been transferred to a recipient mare.…”