A new "walking shark" was found in Papua New Guinea; scientists say its tiny range could put it at risk of extinction

Scientists confirmed a new walking shark species, Hemiscyllium dudgeonae, in Papua New Guinea. Ecologist Christine Dudgeon found the shark in March 2025 while diving in Milne Bay. Researchers said, "its restricted range could make it highly vulnerable to environmental threats." This unique shark uses its fins to move across shallow reefs.