Although bats have legs, you have never seen them walk like normal animals. This is because their bodies are designed for flight, which has resulted in their legs becoming weak and short over time, making them unable to walk.
In addition, their knee joints are bent backwards, and the structure of their wings also makes it difficult for them to walk on the ground.
If there is ever a real need to walk, most bats basically crawl on the ground in a strange way.
However, other species of bats have been designed by nature only for flight, which hinders their ability to walk.
Their hind legs are short and thin, and the bones are not strong enough to support their weight for walking.
In addition, most bats have their knee joints turned backwards, which makes walking difficult.
The large wing membranes that allow flight are not suited for terrestrial locomotion.
Vampire bats, however, are a notable exception. These bats have adapted to walk on the ground and even run for short distances to access their prey on land.