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Crow Photos

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Betty holding bent wire


Betty retrieving bucket with wire 1


Betty retrieving bucket with wire3


Betty with bucket


Abel in well + stick experiment 1


Abel in well + stick experiment 2


Betty in well + stick experiment 1


Betty in well + stick experiment 2


Betty in well + stick experiment 3


Betty in well + stick experiment (wrong way)


Betty in folk physics experiment 1


Betty in folk physics experiment 2


Betty looking at pushing experiment apparatus


Betty in pushing experiment 1


Betty in pushing experiment 2


Betty natural tool use 1


Betty natural tool use 2


Betty in length experiment 1


Betty in length experiment 2


Portrait of Abel outside


Portrait of Abel inside


Portrait of Betty 1


Portrait of Betty 2


Portrait of Betty 3


Miscellaneous tools made by Abel and Betty in captivity


Feather tools made by Abel and Betty in captivity


Twig tools made by Abel and Betty in captivity


Right-lateral tool use

Uek and Nalik looking

Uek oak 1

Uek oak 2

Uek making tool

Uek holding tool

Uek & Nalik on stump

Uek & Nalik on stump

Uek on stump

Uek on stump 2

Uek on stump 3

Uek looking