[3] Recovered vertebrae indicate a relatively short, wide, and deep thorax support the orthograde posture for climbing, clambering, and feeding in an arboreal environment.

The longer forelimbs and dorsally situated scapulae provide a broad range of motion which would enable suspensory below-branch behavior and proficiency in reaching food during foraging.

The proximal phalanges are strongly curved and relatively long when compared to other great apes and most closely resembling the structure of extant orangutans.

[5] The second-to-fourth digit ratio of H. laietanus was relatively low and likely indicates that the species was polygynous, as this trait corresponds to high prenatal androgen effects and is associated with polygyny.

[7] Analysis of the microwear of the teeth of Hispanopithecus indicate a morphological preference for softer foods, including fruits and possibly young leaves.