Hi folks, I would like to signal you this new paper: *Piras P.,* Teresi L., Traversetti L., Varano V, Gabriele S., Kotsakis T., Raia P., Puddu P.E., Scalici M. (2016). The conceptual framework of ontogenetic trajectories: Parallel Transport allows the recognition and visualization of pure deformation patterns. *Evolution and Development* 18: 182:200. DOI: 10.1111/ede.12186 Here we argue that looking at pure deformations, by separating intra-and inter- individual trajectories is very effective in interpreting morphological consequences of ontogenetic allometry. In this case the deformation, rather than shape difference, should be the focus of investigations. Albeit not directly discussed here, possible inferences on the abused concept of heterochrony could emerge from this approach.
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