多食亚目（学名：Polyphaga）是昆虫纲鞘翅目之下四个亚目中最大及最多元化的亚目。目前多食亚目总计有144科，可再归类为五个下目和20个总科。全个亚目有物种超过30万种，约占已发现甲虫物种约九成。当中显示了分类内因为专长和适应而衍生出来的变化。 多 ...

The temporary storage and re-use of tools can significantly enhance foraging efficiency. New Caledonian crows in one of our study populations use two types of stick tools – hooked and non-hooked – ...