I remember learning that crows gathered together are called a murder. A murder of crows. Like a colony of ants or a herd of elephants. It turns out that barracudas come in a battery while cheetahs come in coalitions. Cockroaches are an intrusion, an assembly of finches are a charm and a collection of kittens are a kindle. A group of spiders though, it turns out, is just a group of spiders.
