But one of the authors of the study, Tim McClanahan from the Wildlife Conservation Society, says fisheries in Africa face another threat.

VOA: special.2009.08.11

So claims that--about the failure of conservation in children at different ages could be easily tested and systematically tested, and in fact, there's a lot of support for them.

关于不同年龄阶段的儿童,缺乏守恒概念的论断,能够很轻易的得到系统的检验,事实上,有相当多的证据支持这些论断

耶鲁公开课 - 心理学导论课程节选

Until two years ago, the Red List of Threatened Species of the World Conservation Union said Przewalski's horses were extinct in the wild.

VOA: special.2010.06.22

The Smithsonian Conservation Biology Institute operates in places other than its headquarters in Front Royal,Virginia.

VOA: special.2010.06.22

Tim Whalen directs the Getty Conservation Institute, which is based in Los Angeles,California.

VOA: special.2009.12.15

The report also notes successes in bird conservation efforts.

VOA: special.2009.05.12

The Tennessee senator also wants more exploration for offshore oil and natural gas, and more conservation and efficiency in electricity use.

VOA: standard.2009.04.25

They are part of Conservation Canines, a project at the University of Washington in the U.S.

VOA: standard.2010.02.22

Kenyan national Wangari Maathai won the 2004 Nobel Peace Prize for her work in the Green Belt Movement, an organization that engages in tree-planting activities and environment conservation.

VOA: standard.2010.02.24

"Therefore,to be able to shift the behavior of these people, to look at the turtle the other way around, then you have to involve them in the conservation of the same."

VOA: standard.2010.07.15