| Smuts, Barbara, 272, 275, 277, 335, 346-47, 348
|
| Snell, Peter, 296
|
| Sociobiology, 325
|
| Song of Songs, 301
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| "So You're Going to Have a New Body!" (Schwartz), 121
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| Sperm cells, 2, 7
|
| alkalinity of, 55
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| bisexuality of, 19
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| production of, 15-16
|
| Spiral arteries, 100, 101, 106-7, 108
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| Spotted hyena (Crocuta crocuta) , 63, 252-54
|
| SRY (sex-determining region) on Y chromosome, 30-31, 40
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| Staphylococcus aureus , 104
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|