replicator efficiency and, 147;

tissues and, 80.

See also Evolution; Natural selection

Natural selection:

age effects, 127-31;

genes and, 27-28, 122, 128-29, 155;

intensity of, 82;

molecules and, 44;

mutations and, 130-31;

quality of bodies and organs, 73-74, 98-99, 102, 122-24;

replication and, xi, 152;

reproduction and, 126;

sex ratios, 107, 109, 110-11.

See also Darwinism; Evolution; Genes; Utility function

Nature:

beauty in, 119-20;

natural balance in, 131-32;

natural continuum, 72-77, 92-93, 126;

natural deception, 59-70, 71-76;

natural indifference in, 95-96, 131-33;

purpose in, 97-102, 119-21.

See also Humans

Nature magazine, xiii, 147-48

Nerve cells. See Neurons

Nervous system, 156-57

Neurons:

analog/digital nature of, 15, 16;

development of in the replication bomb, 156-57

Nilsson, Dan, 78-83

Nucleic acids. See DNA; RNA

Orchids, 59-60, 61, 72. See also

Flower colors Organs, 21-22, 156

Origins, theory of, 45-46

Oystercatchers, 63. See also Birds

Pasteur, Louis, 139-40

Peacocks, 120, 124. See also Birds

Pelger, Susanne, 78-83

Phenotypes, 152-54, 155-56

Philip, Duke of Edinburgh, 97

Phonograph records, 12-13

Photocells. See Cells; Eyes

Pigs, 42, 43, 49. See also Mammals

Pleiotropy, 129-30

Population, 34

Proteins, 42-43, 44, 153

Pulsars, 159-60

Pulse Code Modulation, 13

Pulse Frequency Modulation, 15-16

Pulses, 16

Questions, 96-97

Radio, 144-145, 158-59