Flight is interesting because it’s so useful that it evolved at least 4 separate times. Pterosaurs, birds, insects, bats.
If you include gliding or falling with style in your definition of flight, then it evolved even more times. Sugar gliders and flying squirrels for example. Completely unrelated. Both have a similar solution to gliding. Some snakes can glide too!
https://www.smithsonianmag.com/science-nature/why-a-pterosau...
Flight is interesting because it’s so useful that it evolved at least 4 separate times. Pterosaurs, birds, insects, bats.
If you include gliding or falling with style in your definition of flight, then it evolved even more times. Sugar gliders and flying squirrels for example. Completely unrelated. Both have a similar solution to gliding. Some snakes can glide too!