From the ground breaking and life saving to the wacky and implausible, Dr Karl Kruszelnicki reveals some of the best moments in science.
http://www.abc.net.au/radionational/programs/greatmomentsinscience/
The hummingbird: a furnace with feathers
Hummingbirds have a suite of incredible and unique features. However, one of their most important traits can lead to an early death.