Vaquita porpoise (IMAGE) Commission for Environmental Cooperation Caption Fewer than 10 vaquitas remain. The world’s tiniest cetacean is killed as by-catch in gillnets of poachers seeking another endangered species – the totoaba fish – for its swim bladder Credit Olson, NOAA Usage Restrictions No restrictions. License Public Domain 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.