All rodents will kill each other if left with no water, that much is true. But mice will kill for dominance, new members or babies are usually the targets, really nasty.
Also asked, why do mice eat other dead mice?
Wilds rodents like rats and mice will devour the sick in order to keep their family safe from preditors. They also do this to try and keep the disease from spreading to the others so all of them don't die out. To survive as a species there must be natural selection.
Likewise, what animal eats dead mice?
Instead, what I caught was a North American Short-tailed shrew! They happen to be the only poisonous mammal. They are about the size of a large mouse and kill and stash them as winter food. It was the shrew that had dragged the mouse and trap away.
Do dead mice scare off other mice?
Photo 1: Bait the traps Dispose of a dead mouse in a plastic bag in the garbage, then reuse the trap. The scent of the dead mouse will help attract any other mice in the house.
What to do if your mice are fighting?
Transfer your mice to a new cage together if they are fighting.
- Mice will often express aggression when being transferred to a cage that has some familiar smells, but isn't exactly the same.
- To counteract this, transfer the mice to an entirely new cage, with no objects from the old cage.