Yeah, that QI clip came to mind when you mentioned it, but to your point the shape that we consider “fish-like” shows up a lot in water. Even whales and dolphins figured out a similar shape, despite them not being fish (though they might still be etymologically related if you go back far enough?)
Ok, I can buy that the shape of a crab is probably optimized for a certain lifestyle.
I don’t see any of The Avalanches on there. All their stuff is good, but if you haven’t listened to them, probably start with the original Since I Left You album.
For reference, I discovered J Dilla - Donuts when trying to find more stuff like The Avalanches.