Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page 18
... believe that it materially differs in Guinea or the Congo . In certain localities , however , a more contrasted wet and dry season prevails , with a somewhat greater range of the thermometer . This is generally associated with a sandy ...
... believe that it materially differs in Guinea or the Congo . In certain localities , however , a more contrasted wet and dry season prevails , with a somewhat greater range of the thermometer . This is generally associated with a sandy ...
Page 61
... believe it is now tolerably well ascer- tained that the majority of the forest - trees in equatorial Brazil have small and inconspicuous flowers . " 1 My friend Dr. Richard Spruce assured me that by far the greater part of the plants ...
... believe it is now tolerably well ascer- tained that the majority of the forest - trees in equatorial Brazil have small and inconspicuous flowers . " 1 My friend Dr. Richard Spruce assured me that by far the greater part of the plants ...
Page 85
... believe they were not the work of man , or at least of some burrowing animal . In these underground caves the ants store up large quantities of leaves , which they obtain from living trees . They gnaw out circular pieces and carry them ...
... believe they were not the work of man , or at least of some burrowing animal . In these underground caves the ants store up large quantities of leaves , which they obtain from living trees . They gnaw out circular pieces and carry them ...
Page 179
... believe to be one of the chief causes of the dull colour of female birds when their partners are gaily coloured . This subject is fully argued in my Contribu- tions , & c . , chapter vii . As the colours of plants and flowers are very ...
... believe to be one of the chief causes of the dull colour of female birds when their partners are gaily coloured . This subject is fully argued in my Contribu- tions , & c . , chapter vii . As the colours of plants and flowers are very ...
Page 201
... as if for display . Hence I am led to believe that the females prefer or are most excited by the more brilliant males ; for on any other supposition the males would , as far as we can see , be ornamented to no SEXUAL SELECTION . 201.
... as if for display . Hence I am led to believe that the females prefer or are most excited by the more brilliant males ; for on any other supposition the males would , as far as we can see , be ornamented to no SEXUAL SELECTION . 201.
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Common terms and phrases
abundant adapted adorned Africa allied Amazon animals ants attract bamboo Batavia beautiful become beetles birds blue Borneo brilliant butterflies carnivora causes change of colour character characteristic climate Colours of Animals conspicuous continent curious Danaidæ Darwin distinct elegant equatorial zone existence extensive fact families favourable feet female ferns fertilization flowers foliage forest-trees fruits genera genus greater green groups habits heat humming-birds hyænas immense inhabit insects Juan Fernandez kinds land larger larvæ leaves lemurs less light Madagascar Malay Archipelago male mammalia Miocene monkeys natural selection naturalists nests North observed occur organic ornaments Palearctic palms parrots peculiar perhaps phenomena plants plumage probably produced proportion protection rays region remarkable resemble sexual selection showy slender sometimes South America species spots structure sun-birds surface tail temperate zones temperature theory tints tion toucans trees trunks uneatable variation varied variety various vegetation whole wings yellow