PART III
Reading edition
ANIMAL ECOLOGY
XXIX.—THE STRUGGLE FOR EXISTENCE, ADAPTATION, AND SPECIES-FORMING.
The multiplication and crowding of animals, 404.—The struggle for existence, 406.—Variation and natural selection, 406.—Adaptation and adjustment to surroundings, 407.—Species forming, 408.—Artificial selection, 409.
XXX.—SOCIAL AND COMMUNAL LIFE, COMMENSALISM, AND PARASITISM.
Social life and gregariousness, 410.—Communal life, 411.—Commensalism, 413.—Parasitism, 415.
XXXI.—COLOR AND PROTECTIVE RESEMBLANCES.
Use of color, 424.—General, variable, and special protective resemblance, 426.—Warning colors, terrifying appearances, and mimicry, 430.—Alluring coloration, 433.
XXXII.—THE DISTRIBUTION OF ANIMALS.
Geographical distribution, 435.—Laws of distribution, 437.—Modes of migration and distribution, 437.—Barriers to distribution, 438.—Faunæ and zoogeographic areas, 440.—Habitat and species, 441.—Species-extinguishing and species-forming, 442.
APPENDICES
EQUIPMENT AND METHODS
APPENDIX I.—EQUIPMENT AND NOTES OF PUPILS.
Equipment of pupils, 447.—Laboratory drawings and notes, 447.—Field observations and notes, 448.
APPENDIX II.—LABORATORY EQUIPMENT AND METHODS.
Equipment of laboratory, 450.—Collecting and preparing material for use in the laboratory, 451.—Obtaining marine animals, microscopic preparations, etc., 453.—Reference-books, 454.
APPENDIX III.—REARING ANIMALS AND MAKING COLLECTIONS.
Live cages and aquaria, 457.—Making collections, 461.—Collecting and preserving insects, 463.—Collecting and preserving birds, 466.—Collecting and preserving mammals, 470.—Collecting and preserving other animals, 472.