The presence of rare maned lionesses in Botswana's Okavango Delta challenges traditional concepts of the gender binary even in the animal kingdom. These "masculinized" female lions are seen as a genetic aberration, resulting from the disruption of an embryo either during conception or in utero. However, the population in the Okavango Delta appears to have a genetic predisposition toward this occurrence, according to the big-cat conservation group Panthera. While these lionesses are apparently sterile, observers state that they nevertheless have a beneficial role in the prides to which they belong.
Which of the following, if true, would support the statement that the maned lionesses benefit their prides?