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Hay, Richard L., and Mary D. Leakey. "The Fossil Footprints of Laetoli." Scientific American, February 1982, p. 50. The discovery of australopithecine footprints.

Jones, Steve, Robert Martin, and David Pilbeam. The Cambridge Encyclopedia of Human Evolution. Cambridge University Press, Cambridge and New York, 1992.

Klein, Jan, Naoyuki Takahata, and Francisco J. Ayala. "MHC Polymorphism and Human Origins." Scientific American, December 1993, p. 78. Presents the argument that the great variety of MHC proteins implies that the ancestral human population must have been large.

Molleson, Theya. "The Eloquent Bones of Abu Hureyra." Scientific American, August 1994. What skeletons reveal about human life and disease during Neolithic times.

Morgan, Elaine. The Scars of Evolution. Oxford University Press, New York, 1994. An exposition of the physiological and pathological aspects of human evolution.

Pilbeam, David. "The Descent of Hominoids and Hominids." Scientific American, March 1984, p. 84.

Shreeve, James. "The Neanderthal Peace." Discover, September 1995,
p. 70. Fossils from Israel suggest that Neanderthal and modern-looking humans coexisted for up to 50,000 years with no morphological convergence, which means they never mated, perhaps because their mate-recognition systems were too different.

———"Erectus Rising." Discover, September 1994, p. 80. New dating techniques indicate that Homo erectus skulls from Java are 1.8 million years old, placing the human ancestor out of Africa a million years earlier than commonly thought and adding to the debate on single vs. simultaneous evolution of Homo sapiens.

Tattersall, Ian. "Madagascar’s Lemurs." Scientific American, January 1993, p. 90. These remnants of primate evolution are disappearing fast as their habitat is destroyed. Unless hunting and deforestation stop, they may all become extinct.

van Lawick-Goodall, Jane. In the Shadow of Man. Houghton Mifflin Co., Boston, 1971. Jane Goodall’s story of her studies on chimpanzees.

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