|Bull elk Cervus canadensis guarding his cow|
Members of genus Cervus tend to be larger than other genera of the deer family. The largest species are the red deer and the North American elk. However, the moose or "European elk" (Alces alces) is larger than any of these.
Reproduction is sexual, as is the case with all deer. Specific mating behaviors vary at the generic and species level.
Species in this genus tend to adapt readily to a wide variety of wild environments. They tend not to thrive in and among human-settled regions.