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https://theconversation.com/honeybees-join-humans-as-the-only-known-animals-that-can-tell-the-difference-between-odd-and-even-numbers-181040>
"“Two, four, six, eight; bog in, don’t wait”.
As children, we learn numbers can either be even or odd. And there are many
ways to categorise numbers as even or odd.
We may memorise the rule that numbers ending in 1, 3, 5, 7, or 9 are odd while
numbers ending in 0, 2, 4, 6, or 8 are even. Or we may divide a number by 2 –
where any whole number outcome means the number is even, otherwise it must be
odd.
Similarly, when dealing with real-world objects we can use pairing. If we have
an unpaired element left over, that means the number of objects was odd.
Until now odd and even categorisation, also called parity classification, had
never been shown in non-human animals. In a new study, published today in the
journal
Frontiers in Ecology and Evolution, we show honeybees can learn to do
this."
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*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics