The Water Deer (Hydropotes inermis) is a usually solitary animal, besides the rutting months, and a good swimmer. There exist two subspecies: the Chinese Water Deer (Hydropotes inermis inermis) and the Korean Water Deer (Hydropotes inermis argyropus).
Viruses lack most of the internal structure and machinery which characterize 'life', including the biosynthetic machinery that is necessary for reproduction. In order for a virus to replicate it must infect a suitable host cell.
The smallest organism in the world is a virus, although many biologists consider viruses to be non-living because they lack a cellular structure and cannot metabolize by thems â¦ elves, requiring a host cell to replicate and synthesise new products.