Onager a subspecies of the onager as "E. hemionus kiang", but recent molecular studies indicate it to be a distinct species, having diverged from the closest relative of the Mongolian wild ass's ancestor less than 500,000 years ago. Widely five recognized subspecies of the onager include: A sixth possible subspecies, the Gobi khulan ("E. h. luteus", also called the "chigetai" or "dziggetai") has been proposed, but may be synonymous with "E. h. hemionus". Debates over the taxonomic identity of the onager occurred until 1980. As of today, four living subspecies and one extinct subspecies of the Asiatic wild ass have been
History of Marine Animal Populations in some cases, cannot know about these changes. Only the interdisciplinary combination of expertise can fully develop the scope of what is known, unknown and unknowable about the environmental history of the oceans. The findings of the HMAP research effort are disseminated in the following forms:<br> Research Datasets: the HMAP Data Pages (at Hull University) is an open access facility that currently holds approximately 750,000 records drawn from historical archives relating to the case studies listed above. History of Marine Animal Populations The History of Marine Animal Populations (HMAP) is an international, interdisciplinary research initiative. It comprises the historical component