Weakest monster in RuneScape

There are many weak monsters among Runescape. But one of the weakest or suggested to actually be the weakest is the Rat. Due to its level and damage (as it only hits up to a 15) it is good for starters to train on.

Habitat(s)
Rats are found just about all over Runescape. A good place to find them is in Varrock Sewers although this may not be the best place for starters mainly because giant rats can attack them, many spawn there.

Other drops
For some reason they have one 100% drop but it only works in in the Strong Hold. These Rats in the Strong Hold always will drop bones.

There are other things they drop but are both quest items:

Rat bone (m) (used in the Rag and Bone Man quest).

Rat's tail (used in the Witch's Potion quest).