The Physical Basis of SocietyD. Appleton, 1916 - 406 من الصفحات |
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الصفحة 46
... larvæ to penetrate the earth , cocoons from which the new form comes , hibernation for bears , migration for birds , while every rotten log or hollow tree literally teems with dormant life . " The animal lives in an environment which is ...
... larvæ to penetrate the earth , cocoons from which the new form comes , hibernation for bears , migration for birds , while every rotten log or hollow tree literally teems with dormant life . " The animal lives in an environment which is ...
الصفحة 62
... " are not only licked by their hosts ( first step ) , but are also fed regularly from their mouths ( second step ) , and finally also the larvæ of these beetles are reared by the ants like their own brood 62 THE PHYSICAL BASIS OF SOCIETY.
... " are not only licked by their hosts ( first step ) , but are also fed regularly from their mouths ( second step ) , and finally also the larvæ of these beetles are reared by the ants like their own brood 62 THE PHYSICAL BASIS OF SOCIETY.
الصفحة 74
... larvæ of the corn - root worm feed upon the roots of young corn and sometimes cause the loss of the entire field . This worm and a few similar species probably destroy two per cent of the crop year by year . The ear particularly of ...
... larvæ of the corn - root worm feed upon the roots of young corn and sometimes cause the loss of the entire field . This worm and a few similar species probably destroy two per cent of the crop year by year . The ear particularly of ...
الصفحة 78
... larvæ a day , while the yellow - throated warbler will consume 10,000 tree lice in the same time . A scarlet tanager has been known to devour 35 gypsy moths a minute for 18 minutes . More than 50 different species feed upon caterpillars ...
... larvæ a day , while the yellow - throated warbler will consume 10,000 tree lice in the same time . A scarlet tanager has been known to devour 35 gypsy moths a minute for 18 minutes . More than 50 different species feed upon caterpillars ...
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