Auxetic Growth in the Javanese Toad, Bufo melanostictus

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Science  23 Jun 1961:
Vol. 133, Issue 3469, pp. 2012-2014
DOI: 10.1126/science.133.3469.2012


Morphologically, it has been found that erythrocyte size in the Javanese toad is greater in large than in small animals, and preliminary data indicate that the same is true of kidney, intestinal, and liver cells. Physiologically, the hemoglobin concentration, packed cell volume, specific gravity of the whole blood, and the liver glycogen concentration also increase with the size of the animals.