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.
As well as dark grey you can also see Winter White dwarf hamsters with other colouring, such as marbled, sapphire, pearl and sapphire pearl. These cute little rodents have an average captive lifespan of between 1.5 and 2 years. Campbellâs dwarf hamsters are the dwarf hamsters that are most often found in pet stores. In the wild they are found in China, Russia and in other areas of Central Asia. Their dark grey appearance is very similar to that of the Winter White, and they have a similar lifespan; averaging around 2 years.