Podcast

Self Improvement Wednesday

ABC Radio

Education

A weekly lesson on a specific topic with some of Sydney's greatest teachers.

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Predators like lions, wolves and dingoes are at the very top of the food web - so what are the consequences when they're taken from an ecosystem?

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This week's lesson may make you clean your teeth that little bit more carefully...take a listen with Dr Ky-Anh Nguyen from the Faculty of Dentistry at the University of Sydney.

The elusive Peppered Tree Frog is only 3cm long, its call has never been recorded, and it hasn't been seen alive since the 1970s... but that hasn't stopped Dr Jodi Rowley looking for it.

Many Australians share their breakfast table with quite an odd man. You may not look at cornflakes the same way after this.