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Q51406129-9BCC6199-F20C-4EE1-8463-AD751E306621
Q51406129-9BCC6199-F20C-4EE1-8463-AD751E306621
BestRank
Statement
http://www.wikidata.org/entity/statement/Q51406129-9BCC6199-F20C-4EE1-8463-AD751E306621
Further evidence for addition and numerical competence by a Grey parrot (Psittacus erithacus).
P2860
Q51406129-9BCC6199-F20C-4EE1-8463-AD751E306621
BestRank
Statement
http://www.wikidata.org/entity/statement/Q51406129-9BCC6199-F20C-4EE1-8463-AD751E306621
rank
NormalRank
type
BestRank
Statement
wasDerivedFrom
80e09d1614b0e8ec9563bf3d3c4b418116b836f1
P2860
Number comprehension by a grey parrot (Psittacus erithacus), including a zero-like concept.