| Common Name | Species Name | Status/Comments |
| Baiji | Lipotes vexillifer | Extinct: Last known living individual died 2002, although a Chinese man taped a large white dolphin in 2007.1 |
| Maui Dolphin | Cephalorhynchus hectori maui | Almost Extinct: 55 individuals known as of March 20122 |
| Vaquita | Phocoena sinus | Critically Endangered: Fewer than 200 mature individuals estimated as of 20073 |
| Pygmy Right Whale | Caperea marginata | Discovered alive Dec. 2012: thought to be extinct 2 million years ago.4 |
| North Atlantic Right Whale | Eubalaena glacialis | Endangered: Northwest Atlantic – 300-350 individuals; Northeast Atlantic population – not sure if any.5 |