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      Not by P Alone: A Virtuous Economy

      Review of Political Economy

      Informa UK Limited

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          Animal behaviour: elephants are capable of vocal learning.

          There are a few mammalian species that can modify their vocalizations in response to auditory experience--for example, some marine mammals use vocal imitation for reproductive advertisement, as birds sometimes do. Here we describe two examples of vocal imitation by African savannah elephants, Loxodonta africana, a terrestrial mammal that lives in a complex fission-fusion society. Our findings favour a role for vocal imitation that has already been proposed for primates, birds, bats and marine mammals: it is a useful form of acoustic communication that helps to maintain individual-specific bonds within changing social groupings.
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            The Bourgeois Virtues

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              How common and how large are cost overruns in transport infrastructure projects?

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                Author and article information

                Journal
                Review of Political Economy
                Review of Political Economy
                Informa UK Limited
                0953-8259
                1465-3982
                April 2008
                April 2008
                : 20
                : 2
                : 181-197
                10.1080/09538250701819636
                © 2008

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