The gray whale ( Eschrichtius robustus), for instance, has a healthy population in the eastern Pacific Ocean, along the coast of North and South America.
Classifying a species as endangered has to do with its range and habitat, as well as its actual population. For this reason, a species can be of least concern in one area and endangered in another. The gray whale ( Eschrichtius robustus), for instance, has a healthy population in the eastern Pacific Ocean, along the coast of North and South America. The population in the western Pacific, however, is critically endangered.