Hoverflies (probably) can’t sense gravity

Hoverflies (Episyrphus balteatus, shown) use vision and airflow, not gravity, to figure out where they are in space, researchers posit.
Ben Fredericson/Flickr (CC BY-NC 2.0)
Hoverflies (Episyrphus balteatus, shown) use vision and airflow, not gravity, to figure out where they are in space, researchers posit.
Ben Fredericson/Flickr (CC BY-NC 2.0)