It lacked the large thumb spikes found in later iguanodontians, and was more adapted for bipedalism than its larger relatives with its short front limbs and long, counter-balancing tail.

Dysalotosaurus had powerful and long hind limbs, suggesting it was relatively cursorial compared to Iguanodon and other members of the clade.

A recent comparative study based on bone cross-sectional geometry confirmed its bipedal locomotion with erect stance.

[6] Based on CT scans of the braincase, it is believed that Dysalotosaurus held its head dorsally (pointing straight forward) when not feeding.

The same study also suggested, based on the morphology of the inner ear, that Dysalotosaurus was not able to discern between high- and low-frequency sounds (like most herbivorous dinosaurs).

Differences in dentition as the animals aged also suggest a change from an omnivorous diet early in life to fully herbivorous feeding habits as an adult.