N
a large wading bird, Balaeniceps rex, of tropical E African swamps, having a dark plumage, a large head, and a large broad bill: family Balaenicipitidae, order Ciconiiformes 鲸头鹳
If two-million-year-old A. sedibaisindeed the trueancestorofHomo, howcoulditgive rise to those even olderfossils assigned to Homo in BillKimbel's shoebox?