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28 THE MYSTERIOUS BIPED
organisms, ralline as cually not tory of c seven million years ago something major happened.

    A group of neropical forests of Africa and began to move abouton the open savanna.

    tralopit five million years t ral is from tin for “soution in text to Australia.) Australopities, someslender and gracile, like Raymond Dart’s taung curdy and robust, but all fe is  even t successful ories many times longer t achieved.

    t famous ralopit eam led by Donald Johanson.

    Formally knoy”) 288–1, ton became more familiarlyknoer tles song “Lucy in ted ance. “S ancestor, tween ape andhuman,” he has said.

    Lucy iny—just t tall. Sterof some dispute. Sly a good climber, too. Muc entirely missing, so little could be said  s suggested it  books describe Lucy’s skeleton as being 40percent complete, t it closer to ural ory describes Lucy as te. television seriesApe Man actually called it “a complete skeleton,” even  .

    A  many of ted. If you  femurfrom a specimen, you don’t need t to knos dimensions. Strip out all tbones, and total you are left  is called a on. Even by ting standard, and even counting test fragment as a full bone, Lucyconstituted only 28 percent of a on (and only about 20 percent of a full one).

    In ts . Jo ed t—more total, and a fairly important oo, one tribute  to deal  all events, rat Lucyt isn’t even actually kno sive size.

    ter Lucy’s discovery, at Laetoli in tanzania Mary Leakey found footprints leftby t is t—ts ralopition. ter  fo
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