Ants

abdomen adaptation adult animals ant-cows ant-guests antennæ appears Atta attack bees beetles behaviour biological body Bothriomyrmex brood castes cellulose chambers cocoon colony creatures crop defend digested doubtless Driver ants earth eggs evolution evolutionary existence exploit exude fact feed females Forel Formica fusca Formica sanguinea Formicine fungus fusca germ-plasm glands grow grub habits harvesting harvesting ant hatch head heredity honey-dew host hostile human Hymenoptera instincts intelligence jaws larva larvæ larvæ and pupæ Lasius less licking liquid live Lomechusa males mammals mites Myrmicine natural selection neoteny nest nest-smell neuters never nurses Oligocene once organization parasites plant plant-lice plastic Polyergus produce protozoa pseudogynes pupate queen reached regurgitate saliva secrete separate slave-making slaves small workers smell social insects soldiers species stroking structure sub-castes sub-families of ants substances termitary termites tion trees trophallaxis tropical true tunnels usually wasps Wheeler whole wholly wingless wings young