So far, they’ve found that the animals are getting larger and developing longer limbs, possibly to help them run from house cats, their primary urban predators. After subjecting the lizards to ...

Scientists found a “large” creature with “long” limbs in a cave of Sa Kaeo Province ... the team found several unfamiliar-looking lizards around a cave entrance, the study said.

They may look like earthworms or snakes, but they're more closely related to the small lizards. Other reptiles have lost their limbs over time, but the Bipes' front limbs have stuck around.