但是，来自环保组织地球观察研究所(Earthwatch Institute)的生态学家丹·贝伯(Dan Bebber)表示说，该研究依赖于不正确的统计方法。
But Dan Bebber, an ecologist at the environmental group Earthwatch Institute, said the study relies on improper statistical methods.
地球观察研究所，一个将科学带入大众生活的国际性非赢利组织，它关注地球的环境及未来，发起了此次探险活动。
Earthwatch Institute, an international nonprofit organization that brings science to life for people concerned about Earth's environment and future, sponsored this adventure.
地球观察研究所，一个将科学带入大众生活的国际性非赢利组织，它关注地球的环境及未来，发起了此次探险活动。
Earthwatch Institute, an international nonprofit organization that brings science to life for people concerned about Earth's environment and future, sponsored this adventure.
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