| Subject | English | Spanish |
| environ. | animal species reintroduction | reintroducción de especie animal |
| environ. | animal species reintroduction Attempts made to prevent the extinction of threatened species and populations by reintroducing them in their natural habitat. The reintroduction of species in a region requires a preliminary study to establish the reasons of their disappearance and the modifications that might have occurred in the biotopes | reintroducción de especie animal |
| environ. | plant species reintroduction | reintroducción de especie vegetal |
| environ. | plant species reintroduction Reintroducing wild plant species to their natural habitat. The reintroduction of species in a region requires a preliminary study to establish the reasons of their disappearance and the modifications that might have occurred in the biotopes | reintroducción de especie vegetal |
| health. | reintroduction of malaria | reaparición del paludismo |
| environ. | species reintroduction | reintroducción de especies |
| environ. | species reintroduction Reintroducing wild animal and plant species to their natural habitat. The reintroduction of species in a region requires a preliminary study to establish the reasons of their disappearance and the modifications that might have occurred in the biotopes | reintroducción de especies |