Smallest but the strongest

Take a careful look at that ant
Not even large enough to talk about
Scouring along in columns
Always pulling food in volumes

Working feverishly all day
Not even a rest on Sunday
So economically storing food in its burrow
Piling it up in a row

Take a look at that beetle
Trying to form things as if its a puzzle
Gathering its food to store in summer
Knowing that winter is around the corner

Take a look at that honey bee
Praying men should let them be
Wandering all day in search of nectar
Producing honey sweet as butter

Take a look at that housefly
Whose wings could not make it up the sky
Flitting and difficult to catch
On food they love to perch.