Coluber, My computer doesn't do all that well with video. However, the written commentary that went along with each clip was enlightening. A while back I posted a photo (fairly close up) of one of the snakes in midflight. It was possible to see how part of its body was flattened to enable it to glide a bit. Fascinating adaptation. (I love this stuff.)
Another fascinating (to me) among snakes is coloring imitation. (Don't know the technical term for it.) A coral snake, very venomous, with coloring to say, "Stay away."
King snake (just looks dangerous):