natural history

#199      25 min 11 sec
Catching evolution in the act: Bird color and the making of new species

Dr Devi Stuart-Fox

Evolutionary biologist Dr Devi Stuart-Fox explains how bird species in which plumage color form varies from member to member evolve into new species at a faster rate than species of a uniform plumage color form -- confirming a half century-old evolutionary theory. Presented by Dr Shane Huntington.

Episode 170      27 min 43 sec
Something in the air: Chemical communication via pheromones

Prof Mark Elgar

Evolutionary biologist Professor Mark Elgar talks about the hidden smells that surround us – what they communicate to the animals who produce and detect them, and how this sophisticated natural messaging system evolved. With science guest host Dr Dyani Lewis.

Episode 165      23 min 42 sec
Early dating techniques: Determining the age of Australopithecus sediba

Dr Robyn Pickering

Australopithecus sediba, discovered in 2008 in southern Africa, is the most significant paleo-archeological find in recent years. These fossilized specimens have anatomical features lying somewhere between those found in Australopithecus africanus and Homo erectus. Geochemist Dr Robyn Pickering discusses the significance of the find, and how the age of A. sediba was determined. With science host Dr Shane Huntington.

Episode 61      24 min 08 sec
Deconstructing / Reconstructing the Tasmanian Tiger

Prof Marilyn Renfree
Assoc Prof Andrew Pask

Biologists Prof Marilyn Renfree and Assoc Prof Andrew Pask talk Tassie Tiger, and explain how the humble mouse has aided genetic understanding of the extinct marsupial, the Thylacine. With host Dr Shane Huntington.

Episode 51      15 min 36 sec
Please Explain: Taxonomy

Dr Belinda Appleton

Dr Belinda Appleton joins science host Dr Shane Huntington to explain what taxonomers do, and recounts her adventures discovering new species of bats.

Episode 46      23 min 36 sec
The Human Hand in Climate Change

Prof David Karoly

Nobel Peace Prize winner, Prof David Karoly calculates the human-caused contribution to climate change. With science host Dr Shane Huntington.

Episode 45      21 min 54 sec
21st Century Cosmology

Prof Rachel Webster

Prof Rachel Webster takes us into the future of cosmology in a quest to discover our universe's past. With Science host Dr Shane Huntington.