The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 150
Pets in studies of animal behaviour Wild animals as pets Attempts to limit animal exports Quaran-. Scientific observation . The margin between keeping pets for their own sake and as objects for serious study is narrow . The wild animals ...
Pets in studies of animal behaviour Wild animals as pets Attempts to limit animal exports Quaran-. Scientific observation . The margin between keeping pets for their own sake and as objects for serious study is narrow . The wild animals ...
Page 152
... ANIMALS ) . Rabies is one of the most serious animal diseases that can be transmitted to man . It occurs naturally in wild canines such as jackals , foxes , and wolves , and also among the weasels and hyenas . It is widespread in many ...
... ANIMALS ) . Rabies is one of the most serious animal diseases that can be transmitted to man . It occurs naturally in wild canines such as jackals , foxes , and wolves , and also among the weasels and hyenas . It is widespread in many ...
Page 381
... ANIMALS The problem of the origin of multicellular animals ( meta- zoa ) was long dominated by the gastrea theory of a Ger- man embryologist , Ernst Haeckel , who derived the an- cestry of higher animals from the various embryological ...
... ANIMALS The problem of the origin of multicellular animals ( meta- zoa ) was long dominated by the gastrea theory of a Ger- man embryologist , Ernst Haeckel , who derived the an- cestry of higher animals from the various embryological ...
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activity America animals appear areas atoms became become body called camera century changes characteristics chemical Church colour common complete compounds consists containing continued drugs early effect electrons elements energy example existence experience Family field Figure fins fishes groups human important increase individual industry Italy known later lens less light liquid living lower major material means ment methods move movement natural North object occur organic original Peking Pentecostal percent period permafrost personality pest Peter petroleum Philip philosophy photographs plants political position possible practice present printing problems production Quakers range region result rocks similar social South species structure surface temperature theory tion United usually widely