Earlier this week I wrote about the developmental and evolutionary origins of large number representation. A series of studies in human infants, monkeys, rats, and fish demonstrated that animals and humans spontaneously represent large (>4), abstract, approximate numerosities. Animals, human infants, and human adults, show the same ratio signatures (based on Weber's Law).
Everyone maps numbers in space But why don t we all use the same directions?
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Animals are able to count and use zero How far does their number sense go? -- Science & Technology -- Sott net
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