Significados de defenceless creatures en inglés

Never had greater want and misery fallen on defenceless creatures.

What can defenceless creatures do?

Already he has twice sent forth his murderous banditti, who, scouring the fields, have committed fearful havoc upon defenceless creatures.

As they are both defenceless creatures, and not even swift of foot, being easily overtaken in the open, their persistent continuance is curious.