Search queries for the green lizard from Sing frequently pair her name with chameleons. That assumption makes intuitive sense at first glance. Chameleons possess independent optical movement, wrinkled reptilian skin, and jerky, slow-motion locomotion. When Miss Crawly’s glass eye pops out of its socket and spins across the floor, audiences immediately associate that erratic ocular behavior with stereoscopic chameleon eyes.
The character design plays into that sensory trick. Animators gave her a stooped posture, spindly fingers, and a slow, methodical gait that mimics an arboreal lizard navigating narrow branches.
Her official profile from Illumination Entertainment establishes her as a green iguana (Iguana iguana). The biological telltales are visible once you look past the runaway glass eye. She sports a distinct, hanging dewlap beneath her chin, dorsal spines running down her neck, and prominent sub-tympanic scales on her lower cheeks. Those physical markers belong exclusively to iguanids, not chameleons.
