yahoo.com — The drone footage was captured by photographer Hernando Rozo Rodriguez. ... Unfortunately, this video is missing or damaged and cannot be played.

interestingengineering.com — Some of the earliest recorded aircraft designs, including the ones depicted in Leonardo Da Vinci's sketches, were ornithopters — machines that incorporated flapping wings, much like birds and insects, in order to lift into the air. Now, hundreds of years later, a team of engineers in Russia returned…