Gliding Lizard and a Snake that 'Swims' Through the Air

"Gliding reptiles"

bocabertamix, YouTube (April 14, 2008)
video, 1:48

"Amazing gliding reptiles."

This is clearly an excerpt from a video documentary. I'd have appreciated some mention of the source. Odds are, this video came from the National Geographic channel - or shares the same source as a related video, on the National Geographic YouTube channel.

Apart from that: this is a pretty good video, showing two critters you'll find in Indonesia.

The same narrator seems to have done this video:

"Freaky Lizard"

NationalGeographic, YouTube (September 7, 2007)
video, 1:11

"This lizard has one of the strangest movements to ward off predators and make a run for it!"

It's northern Australia's frilled lizard, AKA bicycle lizard.

If the frilled lizard looks slightly familiar, you may be remembering Frank, from Disney's "Rescuers Down Under" (1990).