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Table 2 Volume, fiber length and PCSA of the rectus cervicis muscle in paedomorphic and metamophic I. alpestris. Values are mean ± 1 standard deviation. The Mann-Whitney-U tests compare values between the two morphs. Significance level was adjusted to p ≤ 0.017 after simultaneous Bonferroni correction.

From: Same but different: aquatic prey capture in paedomorphic and metamorphic Alpine newts

  Metamorph (n = 10) Paedomorph (n = 4) Mann-Whitney-U P-value
RC volume (mm3) 2.71 ± 0.98 5.8 ± 0.22 0 0.005
RC fiber length (mm) 5.55 ± 0.26 5.45 ± 0.95 20 1
RC PCSA (mm2) 0.49 ± 0.17 1.08 ± 0.15 0 0.005