Macfadyen, A.
Animal ecology: aims and methods
Pitman, 1963
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Linden, Eugene
The parrot's lament: and other true tales of animal intrigue, intelligence and ingenvity
A Dutton Book, 1999
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Scott, John Paul
Animal behavior
University of Chicago Press, 1958
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Flanders, Frank B.
Exploring animal science
Delmar Cengage Learning, 2012
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Louw, Gideon N.
Physiological animal ecology
Longman Scientific and Technical, 1993
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