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Author |
Hare, B.; Plyusnina, I.; Ignacio, N.; Schepina, O.; Stepika, A.; Wrangham, R.; Trut, L. |
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Title |
Social cognitive evolution in captive foxes is a correlated by-product of experimental domestication |
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Journal Article |
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Year  |
2005 |
Publication |
Current biology : CB |
Abbreviated Journal |
Curr Biol |
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Volume |
15 |
Issue |
3 |
Pages |
226-230 |
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Keywords |
Animals; *Animals, Domestic; Cognition/*physiology; *Cues; *Evolution; Foxes/*physiology; *Selection (Genetics); Social Behavior; Species Specificity |
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Abstract |
Dogs have an unusual ability for reading human communicative gestures (e.g., pointing) in comparison to either nonhuman primates (including chimpanzees) or wolves . Although this unusual communicative ability seems to have evolved during domestication , it is unclear whether this evolution occurred as a result of direct selection for this ability, as previously hypothesized , or as a correlated by-product of selection against fear and aggression toward humans--as is the case with a number of morphological and physiological changes associated with domestication . We show here that fox kits from an experimental population selectively bred over 45 years to approach humans fearlessly and nonaggressively (i.e., experimentally domesticated) are not only as skillful as dog puppies in using human gestures but are also more skilled than fox kits from a second, control population not bred for tame behavior (critically, neither population of foxes was ever bred or tested for their ability to use human gestures) . These results suggest that sociocognitive evolution has occurred in the experimental foxes, and possibly domestic dogs, as a correlated by-product of selection on systems mediating fear and aggression, and it is likely the observed social cognitive evolution did not require direct selection for improved social cognitive ability. |
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Department of Anthropology, Harvard University, Cambridge, MA 02138, USA. hare@eva.mpg.de |
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English |
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ISSN |
0960-9822 |
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Notes |
PMID:15694305 |
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no |
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Call Number |
refbase @ user @ |
Serial |
594 |
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Author |
Lee, C.M.; Ryan, J.J.; Kreiner, D.S. |
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Title |
Personality in domestic cats |
Type |
Journal Article |
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Year |
2007 |
Publication |
Psychological Reports |
Abbreviated Journal |
Psychol Rep |
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Volume |
100 |
Issue |
1 |
Pages |
27-29 |
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Keywords |
Animals; Animals, Domestic/*psychology; *Behavior, Animal; Cats/*psychology; Humans; *Personality |
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Abstract |
Personality ratings of 196 cats were made by their owners using a 5-point Likert scale anchored by 1: not at all and 5: a great deal with 12 items: timid, friendly, curious, sociable, obedient, clever, protective, active, independent, aggressive, bad-tempered, and emotional. A principal components analysis with varimax rotation identified three intepretable components. Component I had high loadings by active, clever, curious, and sociable. Component II had high loadings by emotional, friendly, and protective, Component III by aggressive and bad-tempered, and Component IV by timid. Sex was not associated with any component, but age showed a weak negative correlation with Component I. Older animals were rated less social and curious than younger animals. |
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Department of Psychology, 1111 Lovinger, Central Missouri State University, Warrensburg, MO 64093, USA |
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English |
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ISSN |
0033-2941 |
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Notes |
PMID:17450998 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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4103 |
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