Unlike most turtles with a hard, dome-shaped shell, this one wears a broad, flat, leathery shell that flexes slightly, especially toward the back. That “soft armor” makes it lighter and more streamlined in water, more like a stealthy river cruiser than a walking rock. Add a long, tube-like nose that works like a snorkel, and it can rest almost completely buried in sand or mud with only its eyes and nose showing—breathing without giving away its position.

Its most distinct characteristic is sheer size. It’s among the biggest freshwater turtles on Earth, with individuals reported to be around a meter in shell length and weighing roughly as much as a large person. The head is broad and powerful, with a sharp beak built for grabbing and crushing, and the feet are strongly webbed like paddles. Even its body plan screams “ambush specialist”: it can lie still for ages, then burst forward with a sudden snap when prey gets too close. It also has an unusual “tuck-in” talent for a softshell: it can pull its neck and limbs fully in, which is not something every softshell turtle can do as neatly.

Other giant softshell turtles in the genus Pelochelys live far to the west in parts of mainland and island Southeast Asia, while the Southern New Guinea species is a New Guinea specialist. There’s another New Guinea member of the group, and while both are “giant softshells,” their looks as youngsters can differ, especially in shell patterns. The Southern New Guinea turtle is often described as darker and more rugged-looking overall than some relatives, which can appear smoother or more cleanly patterned. In other words, even within the “giant softshell” club, this one tends to look like the more heavy-duty, river-worn version—built for murky floodwaters and big, shifting channels.

Distribution

Country

Population est.

Status

Year

Comments

Australia

2018

Presence Uncertain, Vagrant: Queensland

Indonesia

2018

Papua

Papua New Guinea

2018