1 Think of this as being like the skin of the avocado. Although not strictly a part of the adrenal glands themselves, the primary function of this layer is to enclose and protect each of the adrenals.  The Cortex. You might compare this layer to the flesh of an avocado.
The average lifespan for a hammy is about 2-3 years and they are very sweet!! The average life span for a hamster in general is about 2-4 years, but different breeds live differents spans. Teddy bears: 2-3 yrs. Syrian: 1 1/2- 3 yrs. Cambells, russians & other dwarfs: 1-3 yrs.
Syrian hamsters have a life span of about 2 years. Russian Dwarf Hamster. The Dwarf Campbells Russian Hamster originates from Central Asia, Northern Russia, Mongolia and North China where it lives in sand dunes. It has been kept in the UK since 1963 and was introduced to the pet market in the UK in the 1970s.