This is an awful lot of REALLY fast dolphins! (video)

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If you have not yet had a chance to see this viral video from CBS News of dolphins swimming en masse, here it is! I have seen large pods of dolphins gather around the fishing vessel when deep sea fishing, presumably hoping for a reject from one of the fisherman. I have also seen them following…
Gray's paradox was originated by the zoologist James Gray in 1936 (J. Exp. Biol. 13: 192–199, 1936). The paradox questioned how a dolphin is able to swim fast (~10.1 meters per second according to his calculations) with what he saw as a limited ability to generate that much power. Therefore, he…
Now he's a captive dolphin rescuer speaking about those training Navy dolphins to find enemy mines. Or was in 2003 at least. This is another from the vault, and like the last, another from someone else's vault. Brent Hoff interviews Richard O'Barry. See below for full text, which originally…
Cuttlefish are intelligent animals that can hide from predators by changing colour and texture, and squirting out a smokescreen of black ink. But amazing though cuttlefish are, their defences mean nothing against one of the most intelligent hunters in the ocean - the bottlenose dolphin. Julian…

A little more information about this wonderful video would be appreciated!

I wish for that myself. I posted it hoping that my science-educated commenters will shed more light on this video.

I think that's the Sea of Cortez. I don't know the species of dolphin, though I've seen them off Southern California also.

I found one blog having a post from the alleged owner/creator of the Dolphin Stampede clip saying this was taken during a fishing trip in "Sea of Cortez between Isla la Guardia and Bajia de los Angeles". As I watched the dolphins making high arches with great speed, rather than exhibiting playfulness, I was curious about sonar testing in that area. I've started a couple of google searches (gotta love it) of "sonar testing Sea of Cortez" & "fishing boat sonar + dolphins" and apparently have a wealth of information to read regarding the issue. Could it not be that the fishing boat using sonar/depth perception/fish finder (after all, a fish finder is sonar) be irritating to a species with tremendous sensitivity? A mystery of our lifetimes...