Giant river turtles lay their eggs on sandbanks and riverbanks when the water level in the river is low. Any unhatched eggs are drowned when the river level rises again.
Scientific name: Podocnemis expansa
Rank: Species
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River turtle race
It's a race against time for one of the world's largest freshwater turtles to lay its eggs safely.
It's a race against time for one of the world's largest freshwater turtles to lay its eggs safely.
Species range provided by WWF's Wildfinder.
The Giant river turtle can be found in a number of locations including: Amazon Rainforest, South America. Find out more about these places and what else lives there.
The following habitats are found across the Giant river turtle distribution range. Find out more about these environments, what it takes to live there and what else inhabits them.
Discover what these behaviours are and how different plants and animals use them.
Additional data source: Animal Diversity Web
Near Threatened
Year assessed: 1996
Classified by: IUCN 2.3
The Arrau River turtle, South American river turtle, or Giant South American turtle (Podocnemis expansa), also known as the Charapa turtle, Arrau turtle, Tartaruga-da-amazônia, or Araú, is the largest of the side-neck turtles (Pleurodira). It is found in the Amazon River and its tributaries (Peru, Brazil, Colombia, Venezuela, and so on). Adults often reach 1 m in length. Females have wide flattened shells and are larger and more numerous than the males. Adult Arraus feed entirely on plant food. The nesting habits of this species are similar to those of their sea turtle kindred. Like sea turtles they gather in huge numbers in order to travel to suitable nesting areas. The females lay their eggs on sandbanks which are exposed only in the dry season, and there are relatively few such sites. The females come out on the sandbanks at night to lay their eggs which can number anywhere from 90 to 100 soft-shelled eggs. They then return to their feeding grounds. The young when hatched are around 2 in long dart directly for the water, but they emerge to the attentions of many predators and even without man's activities, only about five percent ever reach the adult feeding grounds. Because of this it is an endangered species and is protected in most areas.
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