New Guinea Crocodile Skink

Tribolonotus gracilis is a species of skink found in New Guinea. They live in tropical forests and have also been found in human-populated areas. They are commonly known as Red-Eyed Crocodile Skinks, or, rarely, Red-Eyed Bush Crocodile Skinks.

Tribolonotus gracilis is one of the few species of lizards that vocalize when in distress. When startled, they tend to freeze and have been known to "play dead" (even when handled).