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.
Russian hamsters usually live about 2 years but can live up to 4 years. They include three varieties: the Campbell's dwarf hamster, the winter white dwarf hamster and the Roborovski dwarf hamster. The Campbell's dwarf hamster is the one most commonly sold as a Russian hamster. Continue Reading.