Fade, behavior is a trait passed on from parent to offspring in most lizards. With humans we teach our young how to do things. However mot lizards have no interaction with their young, so any behavior changes are passed on genetically, just like any physical trait. Behavior evolves in exactly the same way a physical trait does, but often faster. It's easy to see the natural selection here. The two escape mechanisms will work differently for different predators. I'm sure the twitching lizards fair less well against the more traditional predators, but more will survive ant attacks than will be predated by the traditional predators.

Not fake, just a clear demonstration of natural selection in progress.

Like all good scientific research it's publish for peer review. According to the video the research appears in the Jan 2009 edition of the journal Ecology. You can look it up for yourself to see what the original research shows.