Dongsha Atoll National Park is located at the northern end of the South China Sea in Taiwan. Although only just a little over a hundred people are posted there, it also contains a large number of rats. Rats are exotic species that have been transported to the islands through shipping. The abundant food resources and habitats have enabled them to rapidly multiply, destroying the food chain and ecological balance, and adversely affecting the ecology of the islands and atolls.

National Sun Yat-sen University has specially developed a new type of food bait, which is made from natural corn cob powder mixed with peanut powder or peanut butter. By utilizing the highly absorbent property of the corn cob powder in conjunction with the inability of rats to digest cellulose, the rats that have ingested the bait will die from dehydration. This cross-domain cooperation effectively implemented the rat extermination program, and 721 mice were caught on the Dongsha Islands (Pratas Islands) in just one month.

The Marine National Park Headquarters (MNPHQ) hopes to use environmentally-friendly rat extermination methods to effectively reduce the rat population on the Dongsha Islands, in order to reduce the interference and damage caused by the rats to the environment and protect the marine ecology of the Dongsha Atolls.