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.
Roborovski Hamsters â Smallest Hamsters in The World. The Roborovski dwarf hamster is the smallest hamster in the world, maxing out at just under 3 inches long. This isnât the only thing that makes âRobosâ unique. They have the longest lifespan of any other pet hamster, up to 3-1/2 years.