20 You bring darkness, it becomes night, and all the beasts of the forest prowl.

Read Psalm 104:20 Using Other Translations

Thou makest darkness, and it is night: wherein all the beasts of the forest do creep forth.
You make darkness, and it is night, when all the beasts of the forest creep about.
You send the darkness, and it becomes night, when all the forest animals prowl about.