I actually worked out using the time bar on youtube that if you hold it on 17 seconds nothing has happened and then slide is along to 18 seconds and you've missed the strike, the bite, the constrict and the fall to ground. I REALLY want to get this girl on a slow motion camera because she moves faster than the eye can see.
Been the massive nerd I am I have been using some editing software to slow down and break down Sanke's strike and the results are staggering. Using the time stamp of the video I have broke it into 5 parts.
(Edit to add the time is in seconds and milliseconds) 18:00 – ready to strike (turned to face the rat but made no move towards it). 18:07 - Mouth opened and in contact with the rat. 18:11 – Beginning to rotate into constrict. 18:20 – Constrict taken hold 18:94 – Snake hits the ground.
I know the mouse isn't all that far away but that is a strike time of less than 0.1 seconds and if you was a mouse/rat in the wild it is absolutely true that by the time you see it its already happened. A human average reaction time is 0.2 seconds, so in theory in that time Sanke could bite you twice over, lol.
OK the nerd is back in his box now but I have a real love for figures