- Arounnd 23 species of freshwater turtles occur in Australia, worldwide there are 210 living species.
- The form of sea turtles has changed very little in the past 100 million years.
- A turtles upper shell is called the "carapace" The lower shell is called the "plastron".
- The shell is the primary defence for a turtle, but some species of turtle have glands in the groin and sometimes in the armpits. These release an unpleasant smell to deter predators.
- In time of drougt, frreshwater turtles may trek overland to find new water or bury themselves and wait for rainfall.
- A sea turtle rows itself with the front flippers and steers with the rear flippers.
- A male sea turtle has claws on its front flippers for gripping the female during mating.
- Hatchling sea turtles usually emerge at night, light atrracts them, delaying their rush to the ocean and making them more vunerable to predators, this is known as "light disorientation".
- Soon after hatching, tiny turtles drift with the ocean currents, feeding on minute sea animals. They are rarely seen again until their shell is 35-40 cm, which may be 5-10 years after hatching.
- The flatback turtle forages off the continental shelf and is only found in australian waters.
- The Leatherback is the worlds largest turtle. it can grow up to 2 metres in length and up to 960 kilograms.
- Sea turtles dont breed until they are between 30-50 years old, a green sea turtle may be 48 years old before it breeds for the first time.
- The saw-shelled Turtle is one of the few animals seen to eat cane toads with no ill effects.
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