Male mammals are characterized by the presence of male reproductive organs, including testes, which produce sperm. They typically have a range of physical traits, such as larger body size and more pronounced features compared to females, although this varies among species. Male mammals also often engage in behaviors related to mating, such as displaying strength or competing for territory. In many species, male mammals play a role in parenting, though this varies widely. For example, in seahorses, males carry and nurture the young, while in lions, males protect the pride. Overall, male mammals contribute to the survival and continuation of their species through reproduction and social interactions.