The heart of a butterfly Is la its back instead of its chest. It consists merely of an enlargement in a long blood-vessel. • | A beat will start at its rear end and 1 travel forward, squeezing the blood ahead of it. After repeating this several : times the heart will pause, and then a 1 beat will start at the forward end, sending the blood in the opposite direci tion. Occasionally the beat will start in the middle, sending the blood- both I ways. i ~
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Bibliographic details
Auckland Star, Volume LXIV, Issue 205, 31 August 1933, Page 14
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84Untitled Auckland Star, Volume LXIV, Issue 205, 31 August 1933, Page 14
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