Never put a cute animal gif on Tumblr because it will live in reblogs forever.
The story as I understand it:
A hive or hives of bees that had been placed on the roof of city hall as part of an environmental initiative and in response to worldwide decline in bees. It got overcrowded, so the bees left and swarmed downtown.
There were thousands. One witness said it was “like a cloud.” RCMP warned the public to stay away.
Eventually, most were killed by cars. The remainder are expected to return to hives tonight and they will be removed from downtown.