Bats have the unique ability to weave and dive the air. What is responsible for this unique ability??

Bats fold their wings while they are making an “up-stroke”. This reduces the opposition from the air (Air Resistance) and they save their effort. During the “down-stroke” they push their wide wings downwards with great force ( called Thrust ) and in return they get a lift from the air and rise upwards.

They dive through the air sharply and weave their wide wings across so quickly that not even birds can match. A bird ‘ s wings are much more fixed. Many bats can stay and hover in one place like helicopters or humming birds.  Many of them glide for short periods and stop suddenly.