It's amazing how salmon know to swim upstream to lay their eggs and are able to find their way negotiating rapids and waterfalls… usually.
But a video of lost and confused salmon trying to cross a flooded road in Washington State has become an online hit.
Experts say the salmon were filmed on the side of the Skokomish Valley Road in Seattle after heavy rain had caused flooding to nearby rivers.
The unusual footage shows them wriggling in the water as cars driver past… and answers the question 'why did the salmon cross the road?' -- which no-one had ever asked before seeing this.