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. 2020 Jun 15;15(6):e0234826. doi: 10.1371/journal.pone.0234826

Fig 21. Tapir tooth wear–natural habitat vs zoo.

Fig 21

Comparison of the relative loph distance (RLD, an objective measure of wear) of selected teeth and RLD of M3 distinguished between free-ranging and zoo individuals; Grey = free-ranging; White = zoo; Triangles = P3; Diamonds = M1; Black line = free-ranging; Dashed line = captive. (A) Triangles = P3; Circles = P4; (B) Diamonds = M1; Rectangles = M2;. Differences between free-ranging and captive individuals were significant (assessed by general linear models) for T. terrestris: P3 (n = 36, P<0.001), P4 (n = 37, P = 0.026), M1 (n = 37, P = 0.001), M2 (n = 37, P = 0.021); T. indicus: no significant differences—P3 (n = 12, P = 0.749), P4 (n = 13, P = 0.584), M1 (n = 11, P = 0.495), M2 (n = 13, P = 0.564).