INDEX 



259 



Carnivores, breeding, 41, 166 



characters, 42 



domesticated, 204 



cubs, 169 



games, 228 



habits at night, 213 



handling of, 219 



size and intelligence, 43 



milk, 1 88, 190 



nervousness of, 213 



sexual coloration, 69 



taming of, 210, 211 



young, 10 



and ungulates, 173 



vegetarian, 169 

 Carp, 205 



Cassowary, 70, 101, 106, 109, 149, 154, 161 

 Castor-oil, 194 



Caterpillars, 3, 32, 75, 76, 127, 224, 230 

 Cat-fish, 137 

 Cats, 10, 41, 84, 231 

 Cattle, 46, 88, 171, 219 

 Cells, of brain, 226, 227 



in embryology, 223 



as units of structure, 65 

 Cerebrum, 231 

 Cereopsis, 106 

 Chameleon, viviparous, 145 

 Chamois, 88, 171 

 Chauna, 104 

 Cheetah, 85 



Chemistry compared with vital func- 

 tions, 232 

 Chemotropism, 234 

 Chevrotain, 93 

 Chicks, precocious, 101 

 Childhood, definition of, i 



summary of characters, 223 

 Chimpanzee, ancestor of, 7 



fear of snakes, 201 



gait of, 241 



and imitation, 253 



longevity, 38 



performing, 209 



taming of, 208 



trained, 221 

 Chrysalid, 3, 32 

 Cicada, seventeen-year, 56 

 Cichlids, brood-care, 138 



Circus-performing elephants, 44 



Civets, 10, 85 



Civilisation of ants, 132 



Cladocera, brood-care, 120 



Claustrophobia, 234 



Claws of young carnivores, 212 



Cleanliness, in apes, 210 



of carnivores, 211 



of hyrax, 216 



of nests, 161 



of ungulates, 216 

 Cliff- swallow, nest of, 151 

 Coal-tar, 112 

 Coati, 87 

 Cockatoo, 199 



Cockroach, 34, 124, 205, 233 

 Cocoon, 122, 124, 130 

 Cod, 117, 134 

 Ccecilian, 140 

 Cold, effect of, 162, 168 

 Colics, 153 

 Colonies, of ants, 133 



birds, 152 



termites, 125 

 Coloration, definition of, 63 



summary of, 68, 112 



of birds, 103, 113 



concealing, 74, 104, 114 



of deer, 72 



of down, 104 



of eggs, 154, 155 



of mammals, 81 



protective, 78, 224 



sexual, 70 



warning, 72, 74, 75 

 Colour, 62, 66, 67, 112 

 Communities, of ants, 128, 133 



bees, 132 



social insects, 132 



termites, 125, 132 



wasps, 132 

 Companionship, loss of, 67 



animals, 168, 211 



Concealment by coloration, 78, 96, 1 14 

 Condor, 49, 105, 108 

 Coney, 95, 216 



Consciousness, 233, 237, 251-253 

 Conspicuousness, 69 

 Contour-feathers, 97, 98 



