The whale shark that greeted San Diego Whale Watch passengers and crew swam near the boat, allowing for lots of gawking and picture-taking. (Blue whales, which can measure 100 feet and weigh more than 150 tons, feed off California every summer.) Sightings off Southern California are exceedingly rare.ĪLSO: Sea lion joins dog in a closely contested game of fetch videoīut hot weather and light winds have allowed for unusually high sea surface temperatures, inviting exotic species such as dorado, or mahi-mahi, and at least the one whale shark. Whale sharks, filter feeders that can measure 40-plus feet, are found in tropical waters around the world, including Mexico and Hawaii.

“Not only did we find hundreds of long-beaked common dolphins, but we found a blue whale, two Molas and a WHALE SHARK!” “I always say ‘you never know what you’re going to see out there’ and today proved that!” San Diego Whale Watch boasted on Facebook. The blue whale is the planet’s largest creature, but the rarer sighting was that of the whale shark – the planet’s largest fish species – far north of its typical range.

A San Diego whale-watching company logged an extraordinary daily double Monday with the sighting of a blue whale and a whale shark.

Biggest fish on planet