The idea builds on past efforts to save endangered species by moving them to parts of their former ranges.
Captive breeding is meant to save species from going extinct.
The people who try to save endangered species in Hawaii are immune to despair.
The park's breeding programs aim to save these and other endangered species.
We're not just about saving species, although that's one way you can measure your progress.
Politicians can then decide on what needs to be done and the efforts needed to save certain species from becoming extinct.
That program opened the way for the use of hybridization in saving endangered species.
Countless people write letters and march to save species of no possible benefit to themselves.
Political will is needed in order to save the most threatened species of flora and fauna.
Scientists launch project to save native species threatened by rats.