Final answer:
The student's question about the percentage of male sheep exhibiting male-oriented mounting behavior cannot be precisely answered with the given references, which focus on human sexual behavior and general animal reproductive patterns. Specific studies would be needed to determine such behaviors in sheep.
Step-by-step explanation:
The inquiry about mounting behavior in male sheep relates to the field of animal behavior within biology. Specific percentages concerning male-oriented mounting behavior in sheep are not provided in the reference material, which discusses human male sexual behavior patterns from a notable 1948 study and does not directly provide data on animal behavior patterns. However, the study 'Sexual Behavior in the Human Male' highlighted that within the human population, 37% had experienced a homosexual encounter and 10% were predominantly or exclusively homosexual for an extended period. Although this historical information can give context to the study of sexual behaviors in other species, it is not directly translatable to sheep. It is crucial to conduct research on non-human animal behavior to understand species-specific patterns.
Animal behavior research often looks at courtship behaviors, mating systems (such as monogamy), and how environmental factors like day length can affect the estrus cycle and reproduction, exemplified in the reference to female sheep's estrus cycles. Understanding the mating behaviors and reproductive success in animals can inform about natural selection pressures and adaptive traits within species.