There are eight different genera in the family classified as rabbits, including the European rabbit (Oryctolagus cuniculus), cottontail rabbits (genus Sylvilagus; 13 species), and the Amami rabbit (Pentalagus furnessi, an endangered species on Amami Åshima, Japan).
What is that terrible musty/mold smell coming from my air vents? There have been numerous complaints of a bad musty/mold smell coming from the air conditioning vents. This usually occurs after the A/C has been running or after the truck has been sitting.
First identify the source. A musty smell tends to mean that you have mold growing somewhere. Mold likes a specific environment: damp, dark, and warm. It can grow in places outside of those parameters, but it thrives, growing quickly in places like a sheet-rock wall which has a leaky pipe dripping onto it.