Stringer, Christopher and
McKie, Robin. African Exodus: The Origins of Modern
Humanity. July 1997. 272p. index. illus. Holt/John Macrae, $25
(0-8050-2759-9). DDC: 599.93.
Stringer, a pioneer of the out-of-Africa theory of human evolution,
directs the Human Origins Group at London's Natural History Museum; McKie
is science editor of the Observer in London. Together, they
provide a fascinating overview of scientific confluence and controversy
about "what it means to be human." Drawing on breakthroughs in
paleoanthropological, archaeological, and DNA research, Stringer and McKie
describe "the emergence of the human lineage" through various hominid
forms; outline changing notions about the relationship between
Neanderthals and modern humans; trace possible explanations for Homo
sapiens' success in dominating the world (and the troubling
consequences of that success); and examine adaptations to local climate
and other conditions that define visible racial and ethnic
distinctions, though our genetic differences are infinitesimally
small. On the fringe of academic respectability just over a dozen years
ago, Stringer's theory has been supported by so many diverse scientific
studies it is the new orthodoxy (though opponents, in pop science like
The Bell Curve as well as conflicting anthropological schools,
still counterattack). Given this debate's political and social
ramifications, the demanding but accessible African Exodus should
generate interest. --Mary Carroll
Walsh, John Evangelist. Unraveling
Piltdown: The Science Fraud of the Century and Its Solution. Sept. 1996.
304p. index. illus. Random, $25 (0-679-44444-0). DDC: 573.3.
Proclaimed a stunning anthropological discovery when unearthed in 1912
in a Sussex gravel pit, the humanoid skull dubbed Piltdown Man occupied an
important position in evolutionary theory until finally exposed as a hoax
in 1953. But the perpetrator of the hoax has remained a matter of
conjecture--until now. A historical sleuth of considerable talent, Walsh
traces scientific and biographical evidence to the culprit. He also clears
the reputations of several prominent figures--including Arthur Conan Doyle
and Teilhard de Chardin--falsely accused of involvement in the hoax. But
Walsh's investigative task requires him to do more than identify the man
guilty of the fraud. He must also lay bare the carelessness, naivete, and
misplaced zeal of scientists who could (and should) have detected the
deception. As gripping as a mystery novel, this tale of deceit and
credulity will enthrall any reader willing to suspend faith in modern
science as a coolly rational enterprise. --Bryce Christensen
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