Missing San Francisco sea lions 'off Oregon' - Update

Scientists in the US believe they may have solved the riddle of San Francisco's vanishing sea lions.

The Californian city's famous colony of sea lions all but disappeared over the past month, baffling experts.



But now large numbers of the animals have been spotted further north, off the coast of Oregon.

Scientists say the animals have probably migrated in search of food during the winter, although in unusually high numbers.

With news video.