According to foreign media reports, according to a new study published in conservation letters, researchers have calculated data on a variety of different species, compared their progress over time, and studied the impact of conservation measures on them. < / P > < p > it is very difficult to track the “rescue” of a species, which requires a lot of manpower and data points. Because of this, even if the number of some species has improved significantly, it is not entirely certain that they have been saved. For this reason, the researchers provide an extensive estimate that at least 28 species and up to 48 species have been saved, thanks to efforts by conservationists. < / P > < p > the key to this study is to prevent a concept of species extinction. The species involved in the study must have been classified into endangered, critically endangered or extinct in the wild at any time since the study began in 1993. < / P > < p > the researchers said they had standardized information on population size and trends, threats and conservation actions for the 73 species in 1993, 2010 and the most recent assessment years. In addition, they summed up their key argument that the species might have been extinct if conservation action was not taken. “Classification experts reviewed the information. According to their feedback, we have reduced the candidate species from 1993 to 2020 to 39 birds and 21 mammals, and from 2010 to 2020 to 23 birds and 17 mammals. As a result, the list of candidate species that we have finally obtained represents a set of species that we believe have benefited actively from conservation actions since 1993. ” < / P > < p > there must be some speculation, because it is difficult to verify the health status of some species, but the researchers are conservative in their methods to avoid exaggeration. < / P > < p > this is an exciting study, but it is also a reminder that there are still many animals on the endangered and critically endangered species list, and perhaps the work of conservationists is more needed now than ever before. The report shows that the number of app store purchases soared in the first half of this year due to the impact of covid-19