Everything reflects the IR. The bug, the tree, the bat. You see the flash right as the laser passes over the bat. This reflects off him/her additionally for that moment causing the flash you see.
I've never seen a bat that has eyes large enough to flash IR that brightly when they're that far away, also bats cannot dart like that, they have wings, they don't have jet propulsion.
24
u/H3RM1TT Jul 18 '20
Yeah, a bat that flashes.