They found that baby braincases are similar in size and shape, regardless of their parentage.
结果发现，无论是哪种人，婴儿的的大脑在大小和形态上非常类似，都是狭长型。
2
They found that baby braincases are similar in size and shape, regardless of their parentage. All are elongated, most likely to smooth passage through the birth canal.