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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Evol Dev. 2019 Aug 2;21(5):231–246. doi: 10.1111/ede.12299

FIGURE 5.

FIGURE 5

Comparisons of cranial movements during feeding among the four TH treatment groups. In all cases time zero represents the time point when live prey (paramecia at 8 dpf and brine shrimp nauplii at 65 and 100 dpf) passed the tips of the upper and lower jaws as they were being engulfed. Units and standardizations are given in parentheses in each case. (a-h) Plots for gape angle (a,b), hyoid depression (c,d) and cranial elevation (e,f) for specimen of ages 8 and 100 dpf, respectively (kinematic plots for these four variables at 15, 30, and 65 dpf are presented in Figure S2). (g) Jaw protrusion at 65 dpf. (h) Jaw protrusion at 100 dpf. SL, standard length; TH, thyroid hormone