Final answer:
Tuskless elephants have a selective advantage in areas where poaching for ivory is prevalent, as their lack of tusks reduces the likelihood of being targeted by poachers, resulting in a survival and reproductive advantage.
Step-by-step explanation:
Tuskless elephants have a selective advantage from being poached primarily because they are less likely to be targeted for their ivory. Since poachers often seek elephants with large tusks for their economic value, elephants without tusks or with smaller tusks are not seen as desirable, leading to a reduced trophy hunting pressure on these individuals.
As a result, tuskless elephants have a higher chance of survival and reproduction, leading to an increased frequency of tusklessness in populations where poaching is prevalent. This does not directly translate into enhanced camouflage, increased social status, or improved reproductive success beyond their increased likelihood to survive and breed.