It is usually their urine. If you have a rodent whose cage smells bad, try putting charcoal pads where they go to the toilet under a layer of sawdust or shredded paper. The charcoal absorbs the smell. Or, you could train your animal to go in a special plastic toilet (you can get one from most pet stores) that you can wash, and some come with some stuff that absorbs the smell as well. Another option is cat litter. These toilets are usually a couple of quid so give it a go and see what works best for your pet.
Perhaps a dead mouse.
Bad electrical fixtures.
Bad catalytic convertor(s) is a possibility.
That's a pretty good analogy! It's probably the yeast.
it depends how you take care of the mouse or rat. if you wash it and the cage every few days it shouldn't be bad
tanks smell better...(not as bad) tanks are harder to clean
The size of the feet is not the reason they smell worse or better. It is usually hygiene or health that causes feet to smell bad ,,,, not their size.
Bad air like air fresheners extra strong smell
No Albania does not smell bad !!
Smell the food
No it doeS not have a bad smell
You smell bad because of you sweting.