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  • Print publication year: 2021
  • Online publication date: February 2021

2 - Two-Headed Tadpoles

from Part I - Frogs

Summary

The abnormal animal featured here is a tadpole with two heads. In order to explain how it got that way, the chapter desccribes how the axes of the body are established in the embryo. This leads to a discussion of axes in conjoined twins and symmetry planes in various parts of the body, plus a three-eyed frog.

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