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The American giant softshell turtle (Rafetus americanum) is a species of softshell turtle that originally did not exist, but has since been created by SciiFii and introduced throughout the wetlands, brackish waters, lakes, rivers, and ponds across North America to help boost biodiversity. The American giant softshell turtle is noted for its deep head with a pig-like snout and dorsally placed eyes. This species holds the title of being the largest native-modern freshwater turtle in the world. Its average and maximum sizes seem to exceed other large modern-styled freshwater turtles such as alligator snapping turtles and related giant softshells such as other Rafetus and Pelochelys species. It measures over 100 centimeters (39 inches) in overall length and to 70 centimeters (28 inches) in width, and can easily weigh up to 70–100 kilograms (150–220 lb). Its carapace, or shell, can grow larger than 50 cm (20 inches), with the largest shell that could be found having measured 86 centimeters (34 inches) in length. However, along the curve carapace lengths of up to 106 centimeters (42 inches) have been recorded and it is possible for the largest specimens to weigh up 220 to 247.5 kg (485 to 546 lb). Its head can measure over 20 centimeters (7.9 inches) in length and 10 centimeters (3.9 inches) in width. The male is generally smaller than the female and has a longer, larger tail. The American giant softshell turtle is an omnivore that primarily feeds on fish, crabs, snails, water hyacinth, frogs, and leaves. Despite its massive size and distinctive appearance, this species is extremely secretive and only rarely comes up to breathe, largely preferring to stay submerged deep underwater. The American giant softshell turtle may lay from 50 to more than 120 eggs. It nests at night and during the morning. The conservation status of the American giant softshell turtle is Least Concern due to successful conservation efforts, the American giant softshell turtle's wide range and, unlike most other giant softshell turtles of the genus Rafetus, its tolerance to many of the human activities.