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The evolution of self-control
Significance Although scientists have identified surprising cognitive flexibility in animals and potentially unique features of human psychology, we know less about the selective forces that favorExpand
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Song repertoire size in male song sparrows correlates with detour reaching, but not with other cognitive measures
Song learning is a cognitive task in which juvenile birds acquire, store and use information about adult song to shape their own song production. Comparative studies show that across bird species,Expand
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Bird song as a signal of aggressive intent
A central question in animal communication research concerns the reliability of animal signals. The question is particularly relevant to aggressive communication, where there often may be advantagesExpand
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Sounds like a winner: voice pitch influences perception of leadership capacity in both men and women
It is well known that non-human animals respond to information encoded in vocal signals, and the same can be said of humans. Specifically, human voice pitch affects how speakers are perceived. AsExpand
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Soft Song in Song Sparrows: Acoustic Structure and Implications for Signal Function
In many species of songbirds, males sometimes produce songs at distinctly lower amplitude than in normal singing. Depending on the species, these ‘soft songs’ may be sung in the context of femaleExpand
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How does cognition evolve? Phylogenetic comparative psychology
Now more than ever animal studies have the potential to test hypotheses regarding how cognition evolves. Comparative psychologists have developed new techniques to probe the cognitive mechanismsExpand
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Extent and economic value of manta ray watching in Maldives.
Manta rays, Manta alfredi, are a major attraction for tourist divers and snorkelers in the Republic of Maldives (central Indian Ocean). The aims of this study were to assess the extent and economicExpand
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Measuring hearing in the harbor seal (Phoca vitulina): comparison of behavioral and auditory brainstem response techniques.
Auditory brainstem response (ABR) and standard behavioral methods were compared by measuring in-air audiograms for an adult female harbor seal (Phoca vitulina). Behavioral audiograms were obtainedExpand
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Vocal Fry May Undermine the Success of Young Women in the Labor Market
Vocal fry is speech that is low pitched and creaky sounding, and is increasingly common among young American females. Some argue that vocal fry enhances speaker labor market perceptions while othersExpand
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Soft song in song sparrows: response of males and females to an enigmatic signal
Low-amplitude “soft song” is used by a variety of songbirds; in some species during aggressive encounters, in others during courtship, and yet others in both these contexts. In song sparrowsExpand
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