Its pretty common to eat fish whole in Japan, but I've never witnessed it raw. Homemade fish sauce is essentially raw whole fish.
Unlike land-based meat seafood "auto-lyzes", it dissolves back into seawater essentially-I think its valid for the paleo. Koreans make KimChi with meat and fish, but as this is fermented in a crock, it might be a little far the paleo.
There's a kind of skate they eat-but it was a tough go for me. It doesn't really have any meat, and its all cartilage and fat-with some sort of rubbery skin. I get the shudders just writing about it.
Oh yeah, I'll take seconds of the Sea Snail & Sea Cucumber sashimi please.
The bones are left in sardines, anchovies, and eel, BUT they are'nt raw either.

Most canned fish, be it salmon, mackrel, herring or sardines, have the bones inside. The bones add significantly to the nutritional value by adding calcium and other minerals to an extent that it rivals a similar serving of dairy. I'm not one for canned foods, but in parts of Asia small dried, salted fish are often pounded to break the bones, and Alaska natives will slow-cook whole fish in a pot until the bones become soft. I have also seen some folks swallow whole, minnow-sized live fish with no ill effect.
This in mind, I would not suggest eating the raw (or briefly cooked) bones of anything larger than a minnow. Internal puncture could result. So say my Native neighbors, and their maritime eskimoan culture is old enough to know best!

Couldn't agree with you more...When I first went to Japan I ate nothing but sashimi and their wild foods for three months. Rode my bike all over Hokkaido and still gained weight.
In fact Japanese carry laxatives in their travel kit-they know what happens when they come to America.

Sorry once again ! I was told this by a zoologist at Brookfield Zoo in Chicago and he may have been refering to beef which is what he fed the big cats , saying that if they would eat it cooked he would not have to feed them as much , so it could have some fact in it ! But I do believe its the enzymes in raw that makes it more digestible which maybe he wasnt taking into account! Besides I beleive he should have stayed as close to thier natural diet as possible!
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Sorry once again ! I was told this by a zoologist at Brookfield Zoo in Chicago and he may have been refering to beef which is what he fed the big cats , saying that if they would eat it cooked he would not have to feed them as much , so it could have some fact in it ! But I do believe its the enzymes in raw that makes it more digestible which maybe he wasnt taking into account! Beside I beleive he should have stayed as close to thier natural diet as possible!