> the exact mechanics of the animal’s righting reflex are still not completely understood. I don't think this is true anymore. They move their head and tail to

> the exact mechanics of the animal’s righting reflex are still not completely understood. I don't think this is true anymore. They move their head and tail to rotate themselves upright, and due to their low weight their terminal velocity is not fatal. This video has a good explanation of the process, https://www.youtube.com/watch?v=RtWbpyjJqrU https://www.youtube.com/watch?v=RtWbpyjJqrU Squirrels use a similar technique, Mark Rober has made some good videos explaining that.