冰上的大型海象 – Odobenus rosmarus divergens。 图片来自美国国家海洋和大气管理局 (NOAA) 部队的 Budd Christman 上尉，属于公共领域，通过 Wikimedia Commons 提供 ... 有趣的事实：海象脸上有多达 250 根胡须。 海象的特点是毛皮浓密，有獠牙和胡须，还有用于游泳的鳍状肢。

We, the U.S. Fish and Wildlife Service, in response to a request under the Marine Mammal Protection Act of 1972, as amended, from Narwhal LLC, propose to authorize nonlethal, incidental take by ...

Declaration The recovery strategy for the Polar Bear has been developed in accordance with the requirements of the Endangered Species Act, 2007 (ESA). This recovery strategy has been prepared as ...

The National Environmental Policy Act (NEPA) established a U.S. national policy to protect the environment and also created the President's Council on Environmental Quality (CEQ). Under NEPA, Federal ...