To torture, torment, mutilate, cruelly beat, cruelly kill any animal or unnecessarily fail to provide the same with proper food, shelter or protection from the weather, or drive or work the same when unfit for labor, or cruelly abandon the same or cause the same to be cruelly carried on any vehicle or otherwise; or to commit any other act or omission by which unjustifiable pain, distress, suffering or death is caused or permitted to any animal or animals, whether the acts or omissions herein contemplated be committed either maliciously, willfully or negligently. (See Title B, Chapter 1, § 1.14 or Iowa Code § 717B.2.)