Table ¹: Summary statistics for mandible measurements (in mm) of each age group of Choloepus (mean ± standard deviation [range] sample size). in Harpy eagle kill sample provides insights into the mandibular ontogenetic patterns of two-toed sloths (Xenarthra: Choloepus)

Table ¹: Summary statistics for mandible measurements (in mm) of each age group of Choloepus (mean ± standard deviation [range] sample size). MeasurementAge classesInfantĮuvenileSubadultAdultBAC44.08 ± 3.04 [40.7–47.92] 448.54 ± 2.65 [42.39–52.29] 1554.46 ± 3.79 [50.78–59.2] 465.12 ± 3.28 [61.05–71.01] 9BCC20.57 ± 1.47 [18.76–22.35] 423.08 ± 1.33 [20.83–25.78] 1626.51 ± 0.73 [25.53–27.25] 431.81 ± 1.59 [28.84–33.69] 9HCA12.84 ± 1.41 [9.66–15.12] 1315.66 ± 1.74 [11.95–20.11] 1817.48 ± 1.13 [16.32–18.88] 421 ± 1.25 [18.49–23.08] 9HCC8.16 ± 1.4 [6.01–10.29] 139.65 ± 1.23 [7.52–11.68] 1513.08 ± 0.72 [12.11–13.83] 423.68 ± 0.98 [22.16–25.02] 9LAM17.74 ± 1.57 [14.58–20.44] 1320.6 ± 1.15 [19.15–22.72] 1824.11 ± 2.11 [21.29–26.3] 426.28 ± 1.67 [23.31–28.9] 9LCD8.69 ± 1.11 [7.48–11.43] 139.88 ± 0.75 [8.89–11.73] 1811.43 ± 0.8 [10.7–12.54] 412 ± 1.07 [10.18–13.89] 9LMS14.78 ± 0.84 [13.52–16.22] 1316.98 ± 0.54 [16–18.11] 1818.74 ± 0.69 [17.72–19.15] 420.06 ± 0.71 [19.15–21.38] 9TML56.3 ± 3.76 [50.53–61.07] 1364.9 ± 1.99 [62.81–68.57] 1872.42 ± 2.12 [69.41–74.39] 486.67 ± 3.52 [81.7–91.93] 9 See main text for measurement abbreviations.表¹：二趾树懒（Choloepus）各年龄组下颌骨测量值（单位：毫米）的汇总统计结果（平均值±标准差[极差]，样本量）。其中年龄组依次为幼崽、幼体、亚成体、成体，各测量指标的详细统计如下： 1. BAC：幼崽组为44.08 ± 3.04 [40.7–47.92]，样本量4；幼体组为48.54 ± 2.65 [42.39–52.29]，样本量15；亚成体组为54.46 ± 3.79 [50.78–59.20]，样本量46；成体组为65.12 ± 3.28 [61.05–71.01]，样本量9 2. BCC：幼崽组为20.57 ± 1.47 [18.76–22.35]，样本量4；幼体组为23.08 ± 1.33 [20.83–25.78]，样本量16；亚成体组为26.51 ± 0.73 [25.53–27.25]，样本量43；成体组为31.81 ± 1.59 [28.84–33.69]，样本量9 3. HCA：幼崽组为12.84 ± 1.41 [9.66–15.12]，样本量13；幼体组为15.66 ± 1.74 [11.95–20.11]，样本量18；亚成体组为17.48 ± 1.13 [16.32–18.88]，样本量42；成体组为21.00 ± 1.25 [18.49–23.08]，样本量9 4. HCC：幼崽组为8.16 ± 1.40 [6.01–10.29]，样本量13；幼体组为9.65 ± 1.23 [7.52–11.68]，样本量15；亚成体组为13.08 ± 0.72 [12.11–13.83]，样本量42；成体组为23.68 ± 0.98 [22.16–25.02]，样本量9 5. LAM：幼崽组为17.74 ± 1.57 [14.58–20.44]，样本量13；幼体组为20.60 ± 1.15 [19.15–22.72]，样本量18；亚成体组为24.11 ± 2.11 [21.29–26.30]，样本量42；成体组为26.28 ± 1.67 [23.31–28.90]，样本量9 6. LCD：幼崽组为8.69 ± 1.11 [7.48–11.43]，样本量13；幼体组为9.88 ± 0.75 [8.89–11.73]，样本量18；亚成体组为11.43 ± 0.80 [10.70–12.54]，样本量41；成体组为21.00 ± 1.07 [10.18–13.89]，样本量9 7. LMS：幼崽组为14.78 ± 0.84 [13.52–16.22]，样本量13；幼体组为16.98 ± 0.54 [16.00–18.11]，样本量18；亚成体组为18.74 ± 0.69 [17.72–19.15]，样本量42；成体组为20.06 ± 0.71 [19.15–21.38]，样本量9 8. TML：幼崽组为56.30 ± 3.76 [50.53–61.07]，样本量13；幼体组为64.90 ± 1.99 [62.81–68.57]，样本量18；亚成体组为72.42 ± 2.12 [69.41–74.39]，样本量48；成体组为86.67 ± 3.52 [81.70–91.93]，样本量9 测量缩写的详细说明参见正文。