但是使用现存种类的体重与骨骼尺寸之间的关系建立数学模型，是可行的。
But it is possible to use the weights and bone sizes of existing species to make mathematical models of the relationship.
他们将注意力集中在瑞士和法国12个城市中，为了找出大脑尺寸和存活率之间的关系。
They focused their attentions on 12 cities in Switzerland and France to find out about the relationship between brain size and survival.
据类人猿的大脑尺寸及其社交网络推断，邓巴博士认为人类大脑的尺寸约能容许维持148人的稳定人际关系网。
Extrapolating from the brain sizes and social networks of apes, Dr Dunbar suggested that the size of the human brain allows stable networks of about 148.
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