Without the proper rubber boat deck mats in place, the risk of moisture related slip and fall accidents occurring increases. Rubber flooring also protects wooden boat flooring and increases its life in the face of foot-traffic and the elements.
Dwarf hamsters usually live for 3 or 2 years while big normal hamsters live up to 4 years sometimes even 5. A normal hamster would live to about 2-6 years old. Russian hamsters can live up to 2 1/2 years. But Syrian hamsters on the other hand can sometimes live up to 2 years. the average life of a hamster lives between 3-5 years depending on how well you take care of your pet.
However, this is assuming that the hamster does not get ill and dies naturally of old age. It is quite common for hamsters to develop fatal illness between 18 months and 2 years old. Obviously all hamsters are different and some may live longer than this or die at a younger age for no apparent reason. I have found that Roborovski hamsters seem to be much hardier than other species; most of my robos have died through old age rather than illness.