Thanks God they do not fly indeed !

nah, pretty sure my ex has a passport

Not with that kind of attitude

I've had it with these snakes on the plane

Well......rika cant fly so....already guessed that

There are snakes that can glide from tree to tree

And yet they are often found on board of aircraft.

They better not.

Flying snakes are dragons.....

...yet

However, there are species of snakes that glide from tree to tree.

How would you say that snakes cannot fly, as opposed to that they do not fly?

What is the infinitive form of the verb "fly" in this case? I got different translation options to both "fly" and "날".

The Journal of Zoology Studies reported that some snakes can fly from a tree to an other tree. Here you can see a picture: http://www.khatarnaknews.com/wonder-flying-snake-near-at-coimbatore-in-tamil-nadu/

Why is "snakes cannot fly" wrong?