Nested Regions Hypothesis for cetacean backbone construction (IMAGE)

Harvard University, Department of Organismic and Evolutionary Biology

Nested Regions Hypothesis for cetacean backbone construction

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Nested Regions Hypothesis for cetacean backbone construction: The Nested Regions hypothesis proposes a model where the backbone of cetaceans is divided into precaudal and caudal segments with each further divided into a number of modules common to all cetaceans. Each module can be further subdivided into multiple regions, with a minimum of six and a maximum of nine post-cervical regions across all extant cetaceans.

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Credits: Amandine Gillet

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