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 or Golden Hamsters on average, live for 2 - 2 1/2 years, but some can live up to three and others only reach a year. Winter White and Cambell's Russian Dwarf Hamsters generally have a shorted life span, about an average of 1 - 1 1/2 years, again some can live longer or shorter.hinese Hamsters have the longest life span, 2-3 years, although its not uncommon for them to reach 5 years old. Robuski's (not too sure of the spelling) are generally the same as Dwarf's. Of course, the length of a hamsters life depends on many factors, not least the care and attention you give it.