What is "takes pains"

Usage examples of "takes pains".

The male fly, choosing a female to court, takes pains to bring her a bit of meat or other prey, tidily wrapped in a small silk package.

This girl (I thought suddenly), she takes pains to be realistic but then, how hard are dancers working, when they pretend to be marionettes?

Germain takes pains to avoid Graice Courtney or, if he can't avoid her, to look, with dignity, through her.

THE REALISM OF UNCLE TOM'S CABIN Stowe takes pains in this chapter, and throughout the novel, to assure you that her story is true.