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Long-lived , slow to reproduce , and often hidden beneath the water 's surface , whales and dolphins ( cetaceans ) have remained elusive subjects for scientific study even though they have fascinated humans for centuries . By the late 1960 ’ s sharp-tailed grouse were believed to have been extirpated from Oregon . Conditioning has also been used with success to reduce human mortality from tigers ( Panthera tigris ) in India . The program funding from the US Fish and Wildlife Service is contingent on our being able to substantiate the effort instructors put in and the results achieved . Avoid sites that are also being used for adult social activities where there is smoking or use of alcohol . It popularizes those facts about fish behavior that are hidden in the scientific literature or not readily apparent in the descriptive popular literature . Duplicate hunter education certificates may be issued only by an authorized official of the Department of Fish and Wildlife and are available from Department offices only . The Commission also wanted to hear from local residents to ensure that all opinions have been gathered . While the chief value of studying philosophy is intrinsic , the development of these skills helps equip one for any profession in which creative thought and critical discrimination are called for. As a result people with expertise in computer science and knowledge of some of these interlinked areas are greatly needed in many new careers including computer consulting companies , financial institutions , health industries , natural science and medical research labs , governmental organizations and other contexts where intensive manipulation of information is important . Managers now have specific information on 1 ) which host plant and ant species are necessary for the survival of various Maculinea species , 2 ) the microhabitat requirements of different Myrmica ant species , 3 ) the percentage of host plant and ant species overlap necessary in an area to support a Maculinea population ( to ensure that sufficient larvae are found by the appropriate ant species ) , 4 ) the appropriate dispersion of host plants relative to ants nests ( to ensure that too many larvae are n't brought to a single nest where they may compete and starve ) , and 5 ) the appropriate size and / or density of ant colonies ( to support even a single Maculinea ) . It serves as a preparation for graduate training in linguistics or related areas , and as part of a rigorous general education . Nevertheless , it helps to point out when your students are making progress ( and to mention / reinforce what progress is being made ) . Instructors who observe or are made aware of any inappropriate behavior involving other instructors or students are to intervene and talk to the offending person . McLean et al. ( 1999 ) conducted a similar study in a wild population of the New Zealand Robin , as a surrogate for the endangered Black Robin . A training course has been developed and eventually , all instructors who are not otherwise qualified ( through military , law enforcement or NRA ) will be required to have completed this course in order to supervise live fire . While wood ducks are no longer an endangered species , this research holds important lessons for the management of other cavity nesting birds and birds subject to inter - or intraspecific brood parasitism ( e.g ., Eadie et al. All five species of Maculinea butterfly in Europe are threatened by changing land use practices that convert meadows and pastures to scrub or developments . In addition , people and organizations that have loaned or donated firearms to the program are entitled to know that they are being stored and safeguarded securely . Such charts are best if kept simple , with any lettering large and clear and in direct relation to the subject being taught . Geographic variation has been noted in this species , but no comprehensive systematic studies have been undertaken .