Ultrasound Images (IMAGE) National Marine Mammal Foundation Caption Ultrasound images of dolphin fetuses showing: (A) eye, (B) stomach, liver, lungs, (C) male genitalia (penis), and (d) female genitalia (vagina). Credit NMMF Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.