nuts picking

blog_illl227-01

我們挑選食材時通常會比較其重量及外觀,原來鳥兒也有類似習慣。研究員觀察一些雀鳥選擇花生的行為,發現牠們會銜起去衡量每粒的重量,再決定吃哪一粒,不會浪費精力打開較差的花生。

when we are selecting ingredients, we often compare their weight and appearance to detect its quality. some birds would do similar things as well! researchers discovered some birds would try to detect how good the food inside the nuts are by weighing the nuts with their beaks before they take the time and effort to crack open them.

http://www.scienceworldreport.com/articles/25893/20150524/picky-birds-weigh-listen-peanuts-choose-best-ones-eat.htm

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