[zulfazli]

Interesting that it mentioned a 3-feet wingspan dragonfly. I would have thought they were limited at their current size because of the law of aerodynamics...Now I wonder why we don't see any dragonfly based aircraft around...Fast speed plus incredible manouvering capabilities...

[murkle]

One theory is that it was possible due to more Oxygen see eg https://www.wired.com/2010/11/huge-dragonflies-oxygen