Five-Meter GWS?

Mako vs GWS - awesome pic by Ozzie Sam. Notice how wide the caudal keel is!   
Source - click for detail

Watch.

Hmmmmm.

For what it is worth, methinks that that Shark does not move with the gravitas of a 5-meter animal but rather, like a much smaller individual; and the very pointy snout and very wide caudal keel appear more indicative of a Shortfin Mako, at least to me.

But who am I to say.

Both species inhabit the Med, with the Mako being far more common, albeit locally threatened like all Sharks there. And do re-read this post about the rather fascinating theory about the Australian origins of the Mediterranean GWS population - paper here!
But my call remains that this is a sprightly Mako of 2-2.5m.

Original FB post here, story here.

PS - Bingo: Michael Domeier here!
PPS - compare to this clip of a Mako @ approx 0:20ff!



PPPS -  and now we got ourselves some experts...