The pygmy right whale (Caperea marginata) is a baleen whale, and the last living relative of an ancient group of whales long believed to be extinct. Unlike most other whales, it has rarely been subject to exploitation due to its elusive behavior. Very few sightings have been reported because the whale rarely comes to shore.

The pygmy right whale is found in the Southern Ocean in the lower reach of South Hemisphere, and is fed by copepods and euphausiids. It is relatively small in size, with adults growing to just 21 feet (6.5 meters) long. Scientists know almost nothing about the species habits or social structure.