. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . ^. FIG. 239 —The yellow jacket, Vespa, a social\\asp: a. Worker; b, queen. there are many more kindsof solitary wasps than socialones—show a communal lifelike that of the only yellow jackets andhornets that live throughthe winter are fertilizedfemales or queens. Whenspring comes each queenbuilds a small nest sus-pended from a tree branch,or in a hole in the ground,which consists of a smallcomb inclosed in a coveringor envelope open at thelo
. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . ^. FIG. 239 —The yellow jacket, Vespa, a social\\asp: a. Worker; b, queen. there are many more kindsof solitary wasps than socialones—show a communal lifelike that of the only yellow jackets andhornets that live throughthe winter are fertilizedfemales or queens. Whenspring comes each queenbuilds a small nest sus-pended from a tree branch,or in a hole in the ground,which consists of a smallcomb inclosed in a coveringor envelope open at thelower end. The nest iscomposed of wasp paper,made by chewing bits of 386 EVOLUTION AND ANIMAL LIFE weather-beaten wood taken from old fences or each of the cells the queen lays an egg. She deposits in thecell a small mass of food, consisting of some chewed insectsor spiders. From these eggs hatch grubs which eat the foodprepared for them, grow, pupate, and issue as worker wasps,
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