They fly against the sun so they do not see it
Clearly not all caves have a 'left' hand exit option and it is therefore laughable to suggest that all bats bear left when departing their caves. The idea that thousands of bats would ever try and leave a cave simultaneously is also not a given, although it has been known to occur. On a recent study of bats living in a mountainous area in the Congo region, it was established that bats living in a particularly tight knit group of caves, where entry to and exit from the caves was severely restricted, operated a strict 'one in one out' system, often with no left exit option for the bats to take. It would seem that at the end of the day, every bat is different and there are no hard and fast rules as to how bats leave their caves.
Bats always fly left when exiting caves
Actually yes, bats normally huddle near a right corner and fly out exiting left, but thinking about your question you probably heard this on TV like sonny with a chance. Un-included info: If bats were to fly right they would die because of the impact with the cave, that's why they never turn right.
Bats go to caves because caves are safe and warm. Because caves are safe for bats, bats feel safe there, not scared. Bats that live in caves don't care whether it's dark because they can barely see either way. Instead they navigate using echolocation.
Bats stay in caves
Caves because bats live in caves.
go through the caves in iron island
in caves
Caves.
bats...
explorers find these poor bats
Their afraid of bats