On the sociality and educational significance of natural scientific knowledge .
论自然科学知识的社会性及其教育意义。
Mammals as a class are not strong on sociality .
社交能力是孩子所必要的一种能力。
Other group-level models have also been proposed , focusing on social interaction rather than resource exploitation : homosexuality might correlate with greater sociality and social cooperation ; similarly , it might deter violent competition for females .