Just out of pedantry: Water has terrible conductivity. Blood is less terrible though and in any case air is far worse than either, so point stands.
We can get past that particular issue if the electric dinosaur was jumping such that its victim has the shortest air gap
Pure water is a terrible conductor, but water with dissolved ions is a pretty good conductor, and that’s mostly (maybe always, since things like Sodium an Potassium ions tend to be pretty important in various processes, though IANAB so maybe there are exceptions) the water inside living beings.
More like an ok conductor, but yea that’s what I meant with the blood (and whatever other ways water exists in our body). Though even pure water is more conductive than air by orders or magnitude.
Well, once you ionize it air is a great conductor ;)
