Indian Wild Ass (Equus hemionus khur) is not listed in Schedule 1 of the Wildlife Protection Act, 1972.

Explanation:
The Wildlife Protection Act, 1972 is an important legislation in India that aims to protect and conserve wildlife in the country. It categorizes different species of animals into various schedules, with Schedule 1 providing the highest level of protection.

However, the Indian Wild Ass, also known as the Ghudkhur or Khur, is not listed in Schedule 1 of the Wildlife Protection Act. Let's understand why:

1. Schedule 1: Schedule 1 of the Wildlife Protection Act includes species that are considered to be highly endangered and in need of strict protection. These species are protected from hunting, poaching, and trade. Examples of animals listed in Schedule 1 are the Indian rhinoceros, blackbuck, and lion-tailed macaque.

2. Indian Wild Ass: The Indian Wild Ass, also known as the Asiatic Wild Ass, is a species of wild horse native to the arid regions of the Indian subcontinent. It is primarily found in the Rann of Kutch in Gujarat, India. While the Indian Wild Ass is not listed in Schedule 1, it is classified as a "near threatened" species by the International Union for Conservation of Nature (IUCN).

3. Conservation Status: The Indian Wild Ass faces various threats, including habitat loss, illegal hunting, and competition for resources with domestic livestock. Efforts are being made by the government and conservation organizations to protect and conserve this species. The Wild Ass Sanctuary in Gujarat was established to provide a protected habitat for the Indian Wild Ass and promote its conservation.

4. Schedule 2: Although the Indian Wild Ass is not listed in Schedule 1, it is included in Schedule 2 of the Wildlife Protection Act. Schedule 2 includes species that are not necessarily highly endangered but still require protection. Animals listed in Schedule 2 have some level of legal protection, and their hunting and trade are regulated.

In conclusion, the Indian Wild Ass is not listed in Schedule 1 of the Wildlife Protection Act, 1972. However, it is included in Schedule 2, indicating the recognition of its conservation importance and the need for its protection.