Final answer:
Infanticide is not an adaptation to deter males from mating with a female; rather, it is a behavior where a male may kill the offspring of others to encourage mating opportunities for himself.
Step-by-step explanation:
Adaptations that deter males from mating with a specific female generally aim to ensure that the male invests in the offspring he has helped to create or to keep the female's attractiveness exclusive to a particular male. These strategies may include prolonging copulation, whereby the male ensures that his sperm has the best chance of fertilizing the female's eggs, or mate-guarding, which is when males guard their mates to prevent other males from mating with them. Additionally, applying pheromones to reduce a female's attractiveness to other males is another tactic to secure paternity for the applying male.
However, infanticide is typically a behavior observed in some species where a new dominant male kills the offspring of his predecessor in order to bring the female back into estrus and mate with her, thus furthering his own genetic lineage, rather than preventing mating.