Assertion: gibbon's callosity | /r/HasProperty | ischial
Facets:
Source sentences:
text: They sleep sitting on their ischial callosities, hands resting upon flexed knees and head buried between knees and chest.
text: They sleep sitting on their ischial callosities, hands resting upon flexed knees and head buried between knees and chest.
text: Javan gibbons have ischial callosities, pads without nerves attached to the hip bone allowing them to sleep in a sitting position.
text: Physical Description Pileated gibbons have slender torsos, long arms, no tail, and ischial callosities.