Final answer:
Infanticide may be beneficial to males in certain species by increasing their reproductive success, eliminating rival offspring, and reducing competition for limited resources.
Step-by-step explanation:
Infanticide may be beneficial to the males that practice it because, in some species, it increases their chances of reproductive success or ensures the survival of their offspring. In some cases, infanticide eliminates the offspring of rival males, allowing the infanticidal male to father new offspring with the female. Additionally, in species where resources are limited, infanticide may result in fewer offspring competing for resources, increasing the survival and overall fitness of the remaining offspring.