11.   Many conference participants said they favor establishing captive breeding programs to preserve species, without jeopardizing wild populations.

12.   Scientists say the technique could not only help preserve endangered species but also even revive species that are extinct.

13.   So ought the probability that intervention would preserve the species.

14.   That helps preserve the species.

15.   The promise holds even if unforeseen circumstances arise, which may demand further steps to preserve species.

16.   The rest belonged to five ranchers, who had collected bison to preserve the species and to crossbreed with cattle in hope of creating a more hardy animal.

17.   These natural settings also promote breeding, a vital consideration at a time when zoos are trying to preserve endangered species though captive-breeding programs.

18.   What these organizations have in common is that a reliance on private initiative and property rights to preserve species and cultivate habitat.

19.   At the same time, South Africa has an excellent record for wildlife conservation, with credit for preserving endangered species like the white rhinoceros.

20.   Australia will appeal to South Korea and Indonesia to limit catches of southern bluefin tuna to help preserve the species.