1, can not be eaten.

2. Manta rays were listed under the international convention Convention on the Conservation of Migratory Species of Wild Animals (CMS) in 2011, and the International Union for Conservation of Nature (IUCN) has categorized manta rays as an endangered species. The Manta Trust is a UK-based charity dedicated to manta ray research and conservation. The organization's website also provides information resources on manta ray conservation and biology.

3. In 2013, the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) listed two species of manta rays, the double-snouted antechinus and the alpha antechinus, in Appendix II of the Convention as endangered wildlife. China, as a State Party, will implement protection for these two species of manta rays from September 14, 2014, and regulate the international trade of manta rays.