One student handed Lewis what looked like a worm. Oddly, it moved more like a snake. The strong creature even tried to bite him, Lewis recalls. Lewis teamed up with Christopher Bell at the University of Texas at Austin. He’s one of the world’s few amphisbaenian experts.
The researchers brought specimens of round-headed worm-lizards back to the United States. All belonged to the genus Zygaspis. Technicians at the University of Texas at Austin imaged the animals’ skulls with
