The freezing level is the invisible line that controls winter

Ever wonder why it's pouring rain in the valley but snowing heavily on the mountains? Meteorologist Tyler Hamilton explains ...
Yahoo

There's an Invisible Line That Animals Don't Cross. Here's Why.

The animal kingdoms of Asia and Australia are worlds apart, thanks to an invisible line that runs right between the two neighboring continents. Most wildlife never cross this imaginary boundary, not ...
Australian Broadcasting Corporation

Invisible line 'protects Australia from bird flu'

Australia's best defence against an outbreak of avian influenza is an invisible line passing through the Indonesian archipelago between Bali and Lombok that birds are reluctant to cross, a team of ...
The Weather Network on MSN

Freezing Level: The Invisible Line That Controls Winter Weather

Ever wonder why it's pouring rain in the valley but snowing heavily on the mountains? Meteorologist Tyler Hamilton explains ...