The Kookaburra
Actually there's not just one kookaburra but three different bird species which are known as kookaburras - and two of these are found in Australia.

The Call of Kakadu looks at the life of a young blue-winged kookaburra growing up in Kakadu National Park in northern Australia. This species is found across the tropical north of Australia and down the east coast as far as Brisbane. It's also found in the forests of our northern neighbours, such as Papua New Guinea.

The laughing kookaburra is much better known; you might even say that it's famous - for a "laugh" that's heard everywhere from south-eastern Australia to the sets of Hollywood.

The Frill-necked Lizard
Also known as the frilled lizard, this guy is a real character. Perhaps you've noticed a resemblance to something out of Jurassic Park ? Not surprising really. Like many reptiles, these animals have been around for a long while.

Both males and females have a large frill, or flap of skin, around their necks. The reason? Well, we're not quite sure!

The Crocodile
The crocodile in The Call of Kakadu is known as a saltwater crocodile - not because it only lives in saltwater, but because (unlike many other animals) it is able to live in saltwater. In Kakadu, it can be seen on the coast, in the brackish waters of the rivers and in the freshwater of the billabongs - a home it shares with a second, smaller species of crocodile.

The Agile Wallaby
This is one of many species of kangaroo and wallaby found in Australia. They're not endangered; in fact, they're quite common throughout Kakadu and can often be seen if you sit quietly near the edge of a billabong (or waterhole) at the end of the dry season (September - October).

The Dingo
Dingos are really a distinct race of dogs. They can interbreed with other dogs (within reason!) and probably arrived in Australia approximately 4,000 years ago, perhaps with Macassan traders from Australia's north, rather than with aboriginal people (who've probably been in Australia for at least 50,000 years, if not much longer).