My point is while 'imaginary lines' seem theoretically interesting to point out when we discuss free movement, it's far too ingrained into animals to really change. Maybe in the distant future we will have planets as borders instead of country lines, but the lines will be there!

Also any reason to point out Chimpanzees have wars including patrolling land borders and recon missions :)

The main thing we have over animals is our ability to reason, so if anyone can overcome petty border disputes, it’s us.

“Animals do it” is not a compelling argument for humans to participate in… well, anything. We know better!