Final answer:
The social sciences, particularly sociology, suggest that nurturing is an innate human behavior shaped by biological evolution and cultural development, though not determined solely by genetics as the field of sociobiology might imply.
Step-by-step explanation:
The social sciences, including sociology, support the basic claim that it is human nature to nurture. This idea stems from the understanding that humans have evolved behaviors that support the continuation of the species, including nurturing behaviors which are not just based on instinct but are also shaped by our capacity for culture, which is itself a product of evolution. The anthropological approach grounded in evolutionary theory suggests that human culture, and the nurturing aspect associated with it, is a deeply biological phenomenon, influenced by natural selection. However, this is not to say that all behaviors are predetermined by biology, as the controversial field of sociobiology posits, since environmental factors also play a significant role in shaping behavior.