Table 1.
Percentage areas (% pixels) of apparent density in MIPsa.
| mass (kg)b | % max | % second | % third | % fourth | % fifth | ||
|---|---|---|---|---|---|---|---|
| Choloepus | 6.25 | mean | 13.4 | 30.1 | 28.2 | 13.8 | 4.7 |
| n=5 | s.d. | 3.6 | 15.3 | 7.9 | 9.1 | 3.5 | |
| Bradypus | 4.25 | mean | 20.7 | 36.1 | 24.3 | 6.9 | 2.5 |
| n=8 | s.d. | 6.3 | 7.9 | 7.9 | 3.7 | 0.5 | |
| Myrmecophaga | 28.5 | mean | 54.8 | 24.1 | 9.9 | 3.4 | 1.6 |
| n=5 | s.d. | 29.9 | 16.9 | 14.0 | 4.5 | 1.0 | |
| Tamandua | 4.5 | mean | 51.1 | 24.9 | 6.0 | 3.5 | 3.0 |
| n=15 | s.d. | 14.6 | 10.1 | 2.4 | 1.3 | 1.1 | |
| suspensory sloths | mean | 17.8 | 33.8 | 25.8 | 9.5 | 3.4 | |
| n=13 | s.d. | 6.4 | 11.1 | 7.8 | 6.9 | 2.3 | |
| quadrupedal anteaters | mean | 52.0 | 24.7 | 7.0 | 3.5 | 2.6 | |
| n=20 | s.d. | 18.6 | 11.6 | 7.0 | 2.3 | 1.2 | |
| suspensory primatesc | mean | 6.0 | 17.9 | 30.2 | 25.7 | 9.9 | |
| n=12 | s.d. | 2.9 | 7.2 | 8.0 | 7.7 | 8.6 | |
| quadrupedal primatesc | mean | 16.2 | 23.3 | 27.3 | 19.8 | 5.3 | |
| n=33 | s.d. | 8.2 | 10.7 | 7.4 | 11.7 | 4.1 |
a
Percentages calculated as the number of pixels in a colour bin divided by the total number of pixels in the articular surface. Colour scale in figure 1a provides bin definitions.
b
Genus means from Nowak (1999).
c
Data adapted from Carlson & Patel (2006).