The materials for studying the American man biologically are abundant in the United States National Museum in Washington; the Peabody Museum, at Cambridge, Massachusetts; the American Museum of Natural History, New York; the Academy of Sciences and the Free Museum of Arts and Sciences, Philadelphia, Pennsylvania; the Field Museum in Chicago; the National Museum, city of Mexico, and the Museum of La Plata. [Please select]
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This is what we mean by the _gregarious instinct_ biologically considered. [Please select]
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Now all this is not hard to understand, biologically. [Please select]
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There were minor deviations, of course, biologically and structurally, but never culture-wise. [Please select]
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The essence of instinct, one might say, is that it provides a mechanism for acting without foresight in a manner which is usually advantageous biologically. [Please select]
Do you have a better example in your mind? Please submit your sentence!