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Video

Giant Cuttlefish

This 12 minute video segment from Catalyst outlines the fascinating and unique features of the giant cuttlefish and its mass breeding at Point Lowly. Then it explains how scientists have determined the vulnerability of this species- the fact that the eggs are sensitive to high levels of salinity and the fact that they die ...

Video

Aerial Orang Utans

This 11 minute video segment form Catalyst shows that although the orang-utans of Borneo are threatened with extinction, we don't know exactly how many are left or where they are. The use of helicopters to locate their nests and estimate population size has helped to challenge our thinking about the requirements of this ...

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Indigenous Science: shell middens and fish traps

This is an article about Aboriginal shell middens along the Queensland coast and the information they provide about Aboriginal food collection practices. Written by Kudjala/Kalkadoon Elder from Queensland Letitia Murgha and intended mainly for teachers, it describes how shell middens were created over thousands of years ...

Video

Weedy Seadragons

This five and a half minute video segment from Catalyst demonstrates how tagging is being used to study populations of sea dragons. The Weedy Seadragon is one of the most visually striking creatures in the sea but we still have a lot to learn about them.

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Above the snowline

This ABC In Depth feature article gives a range of examples of adaptations and responses of Australian alpine ecosystems, plants and animals to cold conditions.

Interactive

Population Size

Students use this resource consisting of ten slides with diagrams, written explanation and voice-over to understand competition amongst organisms for resources that are limited and other factors that may affect population size. There is a two-question quiz and a summary slide.

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Ant safari

This ABC In Depth feature article includes some good advice for exploring local ant populations as well as an excellent information report on Australian ants: the different types and their roles.

Interactive

Studying Habitats

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand the type of observations and measurements that need to be made when studying an ecosystem. There is a two-question quiz and a summary slide.

Interactive

Sampling Technique

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand some different methods of collecting animals in the wild. There is a two-question quiz and a summary slide.

Video

Dr Ove Goegh-Guldberg

This 5 minute video segment from Catalyst highlights the vulnerability of some of our ecosystems and the way abiotic factors can have a dramatic effect. It also exemplifies the difficult process of having new scientific ideas accepted.

Video

Seahorses

This six and a half minute video segment from Catalyst shows one of the most beautiful and bizarre creatures under the sea, the seahorse. Their highly unusual reproduction has not been sufficient to overcome the impacts of habitat destruction and human predation.

Video

Artificial shark birth

A five and a half minute video segment from Catalyst that explains why Grey Nurse Sharks are in danger, especially on Australia's east coast where only a few hundred individuals are thought to exist. However, in a world first, researchers at the NSW Department of Primary Industries have built an artificial uterus, which ...

Image

'Gold digging in Australia 1852: bad results'

This is the first of a pair of oval watercolours, measuring 20.2 cm x 26.4 cm, painted by Samuel Thomas Gill (1818-80), a famous colonial artist. It shows two gold miners sitting dejectedly beside their mine, probably on the Victorian gold fields. Behind the men is a windlass, as well as their wheelbarrow, pick and spade. ...

Interactive

Who's for dinner?

Look closely at a food chain and food web from a billabong habitat. Help animals to feed and survive. Play the role of a tadpole, fish or heron. Help the animal to grow and breed by feeding and avoiding predators. Notice that eating high-value food sources may increase an animal's risk of being attacked by predators.

Interactive

Old Bernie's Pond

Clean up Old Bernie's Pond. See how it has become polluted and invaded by introduced species. Restore the pond by choosing actions such as planting native species and removing sources of pollution. Look at the effects of each change. Earn points to get a certificate.

Interactive

Discovering democracy: democratic struggles

Interact with a slideshow of images and text to explore the influence of the Chartist movement in Britain on the miners' struggles at the Ballarat goldfields, and the development of democratic ideas in Australia.