Pig-Nosed Turtle (Fly River Turtle)
Carettochelys insculpta (Ramsay, 1886)
Range: Southern New Guinea, Northwestern Australia
Habitat: Rivers, Lagoons
Diet: Mollusks, Fish, Crustaceans, Fruit, Aquatic Plants
Social Grouping: Solitary
Reproduction: Females nest between July and October at night, sometimes in groups; nest pit dug with hind limbs, up to 50 centimeters deep. Eggs are 4 centimeters in diameter and weight 35 grams – incubation period is 64-102 days, with rising water stimulating eggs to hatch. Hatchlings are 5-6 centimeters long. Temperature for sexual differentiation is 31.5 degrees Celsius (higher temperatures females, lower males). Females usually nest twice per year.
Lifespan: 35 Years (Captivity)
Conservation Status: IUCN Vulnerable, CITES Appendix II
- Largest Australian turtle – maximum length of 70 centimeters, maximum weight of 30 kilograms; males are generally slightly smaller with a longer, thicker tail
- Resembles a sea turtle in having flippers instead of webbed feet for limbs (males have two claws on edges of anterior flippers); also only turtle species in world to have thick, pig-like snout (responsible for one of common names), which can be used as a snorkel while swimming
- Color ranges from silver-gray to brown-black, with light spots on carapace; ventral surface is creamy yellow or pink
- Can tolerate brackish or saltwater, and sometimes seen out at sea or nesting on beaches alongside sea turtles
- Rarely leaves water (never seen basking on sandbanks or rocks), has difficulty moving on land; normally leaves the water only to nest
- Primarily nocturnal, using snout (which is equipped with sensory receptors) to probe for food in mud at the bottom of the water
- Home ranges may be up to 10 kilometers of river (larger than other freshwater turtles)
- Crocodiles are major predators, but nests and hatchling are also threatened by feral buffalo, which may trample the nests
- Desired as food source due to large size and tasty meat, especially in New Guinea, where eggs are also collected extensively
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