Self Improvement Wednesday

Each week you get to learn something new - your teacher is Liz Ann Macgrefor, Director of the Museum of Contemporary Art. William Kentridge is one of the most significant contemporary artists working today.

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?

The leopard tortoise is the second largest tortoise native to Africa. Ben Britton from Wild Animal Encounters tells you all you need to know about them.

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.

The rise of the political populist, whether it's Trump or Hanson, Marine Le Pen or the leftist leaders in South America, how can the term encompass people with such diverse views?

If you think about an ant, they have a teeny tiny brain and yet they are able to solve a complex task like navigation very simply and efficiently. How do they and other insects do that?

How do you know how healthy the food you buy is?

From the magnificent ice eruptions of one of its moons to the changing colours of the jet-stream, astronomer Fred Watson takes us on a trip to Saturn.