The organized killing of hundreds of koalas has sparked controversy between state officials and animal activists in Australia.
Chris St. Clair
Five weird tunnels from Moose Jaw to Korea
Finding unexplained underground passages happens all the time.
Global warming 'false pause'
What's behind the so-called 'pause' in global warming? The Pacific Ocean.
What Canada can learn from Collingwood
Residents are filling bath tubs with snow to combat frozen pipes, but why?