In this book, the author, an expert in his field, describes the most fascinating stages in the eels biological cycle, its migrations and the modifications it undergoes during its life. Eels interest us not only because of their life and breeding cycles, but also because of the questions they raise concerning our ideas about evolution. Does the notion of adaptation suffice to explain everything the eel has become? Doesnt a living creature maintain a certain amount of independence in relation to the world that surrounds it? Or is the relationship between a living creature and the environment which surrounds it more complex that we have generally realised ?
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