Why does a knight combine better with the queen than a bishop does? From this question, the couple queen + knight is strong in attacking the opponent's king.

I searched why the knight combines better than the bishop with a queen, and all I could find, from this article, is:


  "Knights cooperate better than bishops with the queen, as the two
  pieces complement each other and will control the position better."


Can you explain why?
It is a fairly short and simple explanation:

They can combine to attack any square, not just squares on one color. As part of that they can also shift the attack better from one square to another.