I suppose you know a group of lions is called a pride of lions and a group of crows is called a murder of crows.
And I suppose you're feeling pretty proud of yourself now that you knew that a group of lions is called a pride of lions and a group of crows is called a murder of crows.
Hah, but I bet you don't know what a group of frogs and a group of toads are called.
Well,
A group of frogs is called an army of frogs.
&
A group of toads is called a knot of toads.
There. I've got meself a knot of toads on my blog.
Hooray!