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Fig. 6 | BMC Biology

Fig. 6

From: A universal power law for modelling the growth and form of teeth, claws, horns, thorns, beaks, and shells

Fig. 6

Pointed structures in vertebrates, invertebrates, and plants follow the power cascade model. a Log Distance vs log Radius for structures found in animal and plant classes. b Occupation of non-tooth structures in Slope-Aspect Ratio morphospace. Note that none of the structures, including shells, fall at Slope = 1 where the shape is a cone. Bird beak and gastropod shell labels indicate different specimens in the two graphs

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