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Arithmetic in newborn chicks
Newly hatched domestic chicks were reared with five identical objects. On days 3 or 4, chicks underwent free-choice tests in which sets of three and two of the five original objects disappeared (either simultaneously or one by one), each behind one of two opaque identical screens. Chicks spontaneous...
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| Главные авторы: | , , , , |
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| Формат: | Artigo |
| Язык: | Inglês |
| Опубликовано: |
The Royal Society
2009
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| Предметы: | |
| Online-ссылка: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2690459/ https://ncbi.nlm.nih.gov/pubmed/19364746 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1098/rspb.2009.0044 |
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