Cover — Т. Nebbia, DPI.1 — W. Ruth, Bruce Coleman, Inc. 5, 8–9 — George Calef. II — T. McHugh, Photo Researchers, Inc. M—15 — S. Wilson, Entheos. 17—John Dominis, Time Inc. 18 — R. Kinne, P. R., Inc. 19 — M. Levy, P. R., Inc. 20, 21 — C. Bavignoll, Time Inc. 22 (top) — S. Trevor, В. C., Inc:, (bottom, left) — H. Albrecht, В. C., Inc, (bottom, right) — S. Trevor, В. C., Inc. 23 — (top, left) — R. Kinne, P. R., Inc., (top, right) — G. Shapira, P. R., Inc., (bottom, left) — S. Trevor, В. C., Inc., (bottom, right) — Leonard Lee Rue III, В. C., Inc. 24–25 (top) — T. Nebbia, DPI. 24 — John Dominis, Time Inc. 25—John Dominis, Time Inc. 26–27 — John Dominis, Time Inc. 32–33 — Leonard Lee Rue III, P. R., Inc. 33—John Dominis, TJme Inc. 34—M. N. Boulton, Nat’l. Audubon Society Collection, P. R., Inc. 34–33 — Tatarsky, DPI. 37 — N. Myers, В. C., Inc. 39 — E. Appel, P. R., Inc. 40 — C. Haagner, В. С., Inc. 40–41 — N. Myers, В. C., Inc. 42 (left) — Leonard Lee Rue III, В. C., Inc., (right) — K. W. Fink, В. C., Inc. 43 (top) — G. D. Plage, В. C., Inc., (bottom) — Leonard Lee Rue III, В. C., Inc. 44 — (top) — N. Myers, В. C., Inc., (bottom) — R. D. Estes, P. R., Inc. 45 (top) — M. Quraishy, В. C., Inc.. (bottom) — N. Myers, B. C., Inc. 46 — Peter B. Kaplan. 47(top) — Nina Leen, (bottom) — C. Bavagnoli. Time Inc. 49 — E. Appel, P. R., Inc. 50 (top) — G. Holton, P. R., Inc., (bottom) — Bruce Coleman, Inc. 51 (left) — Bruce Coleman, Inc., (right) — D. Steffen, P. R., Inc. 52–53 — T. Hollyman, P. R., Inc. 54–55 — M. P. Kahl, В. C., Inc. 55 (top) — Bruce Coleman, Inc., (bottom) — F. Erize, В. C., Inc. 56–57 — Des & Jen Bartlett, В. С., Inc. 58 — F. Erize, В. С., Inc. 58–59 — R. Peterson, P. R., Inc. 61 — H. Reinhard, В. C., Inc. 62— H. Reinhard, В. C., Inc. 63 (top) — J. Foott, В. C., Inc., (bottom) — N. Myers, В. C., Inc. 65 — J, Van Wormer, В. C., Inc. 66—Bruce Coleman, Inc. 66–67 — J. M. Burnley, В. С., Inc. 76 — E. R. Degginger, В. C., Inc. 77 — B. Campbell, В. C., Inc. 78 — Peter B. Kaplan, P. R., Inc. 79 (top) — M. N. Boulton, В. C., Inc., (bottom) — K. Tanaka, Animals Animals. 80–81 — T. Nebbia, DPI. 83 — Leonard Lee Rue III, В. C., Inc. 84 —S. Wilson, DPI. 84–85 — N. Devore III, В. C., Inc. 86–87 — J. Verde, P. R., Inc. 87 — K. Brate, P. R., Inc. 86 — H. Engels, Nat’l. Audubon Society Collection, P. R., Inc. 89 — J. M. Burnley, Nat’l. Audubon Society Collection, P. R., Inc. 90 (top) — M. P. Kahl, В. С., Inc., (bottom) — H. Reinhard, В. С., Inc. 9 I (top) — J. Burton, В. C., Inc., (bottom) — R. Kfhne, P. R., Inc. 99—J. Hancock, P. R., Inc. 95 — B. Brooks, В. С., Inc. 96 (top) — John Dominis, Time Inc., (bottom) — Dain, P. R., Inc. 97—K. Gunnar, В. C., Inc. 98–99 — K. Gunnar, В. C., Inc. 99—J. Foott, В. C., Inc. 100 (top) — P. Thatcher, P. R., Inc., (bottom) — K. Fink, P. R., Inc. 101 (top) — K. Fink, В. C., Inc., (bottom) — E. Duscher, В. C., Inc. 102 — D. Hiser, P. R., Inc. 103 (top) — Bob & Clara Calhoun, В. C., Inc., (bottom) — W. Fraser, В. C., Inc. 104—Bruce Coleman, Inc. 105 (top) — T. Branch, P. R., Inc., (bottom) — W. Ruth, В. C., Inc. 107 — Leonard Lee Rue III, В. C., Inc. 108—K, Fink, Nat’L. Audubon Society Collection, P. R., Inc. 109 (top) — N. Mishler, P. R., Inc., (bottom) — J. Couffer, В. C., Inc. 110–111 — L. B. Jennings, Nat’l. Audubon Society Collection, P. R., Inc. 110—K. FJnk, Nat’l. Audubon Society Collection, P. R., Inc. Ill — F. Erize, В. C., Inc. 113 — Wolfgang Bayer. 114 — T. Nebbia, DPI. 114–115 — H. Sylvester, Rapho, P. R., Inc. 120–121 — B. Eppridge, Time Inc. 121 — N. Devore III, В. C., Inc. 122–125 — Wolfgang Bayer. 128 — W. Ruth, В. C., Inc.

Photographs on endpapers used courtesy Time — Life Picture Agency, Russ Kinne and Stephen Dalton, P. R., Inc., and Nina Leen.

Film sequences p. 10 — «Mustang», a program in the Time — Life Television series Wild, Wild, World of Animals.

ILLUSTRATION p. 12 — L. Raboni; p. 13 — C. Tarka; pp. 28–31.

C. Robinson: pp. 72–75 and 117–119—John Groth; pp. 88 and 108 — Enid Kotschnig.