The secret life of water rats 
You may be forgiven for thinking the quietly receding shape paddling along the surface of a lake or creek is a platypus, but it is probably a water rat, one of Australia’s shyest and least known native mammals.
 

Koalas with grunt 
If you're out and about in the coastal forests of eastern and southern Australia at this time of the year, you might be lucky enough to come across the bizarre sounds of male koalas looking for love. They might look passive and sleepy, but come mating time, koalas morph into aggressive, smelly creatures that you'd never want to cuddle in a million years.
 

Capturing a Miracle - Photo Comp 
Nature in all her glory is a tempting target, especially in spring. But what is it that makes a good nature photo a fantastic nature photo? We asked professional photographer and Scribbly Gum Photo Competition judge, Steve Parish about the art of nature photography.
 

When Cockatoos Attack 
The sulphur-crested cockatoo is usually found in pairs or small parties. But in southern Australia they often congregate in large flocks of up to a hundred noisy birds. These cockie mobs can get nasty and attack trees, decks and houses in a controlled frenzy of destruction that can go on for days. Ruth Beran reports on their crazy spring-time antics.
 

Hard core spawn 
In 1981, Australian researchers on the Great Barrier Reef stumbled across an amazing natural phenomenon. All of a sudden, millions of tiny cells began spewing out of the living corals. They poured into the water column like champagne bubbles, floating to the surface and forming a thick, pink 'slick'. The researchers had witnessed coral spawning, an annual event, which occurs in all coral, reefs around the world.
 

Mansions in the Mallee 
Out in the mallee country, in the hot sun, a little Aussie bird is doing the impossible. Itís shifting literally tons and tons of dirt, all in the name of making babies. The challenge for the Malleefowl is to keep their eggs at a constant temperature - and they do it the hard way, by building a mansion in the mallee that acts as a giant incubator, and then furiously adding or removing sand as the temperature varies.