Our pelves were becoming more bowl-shaped, and our hand-wrist morphology, or form, suggested a change in our grip as we began to make and use stone tools and spend less time in the trees.
Panggul kita berbentuk lebih seperti mangkok, dan struktur pergelangan tangan, ataupun bentuknya, membuktikan perubahan pada tangan kita saat membuat dan menggunakan alat batu serta lebih jarang di pepohonan.