How nectar bats fly nowhere

The first direct measurements of wingbeat force show how hard hovering is

Pallas's long-tongued bat hovering

LAP IT UP  A Pallas’s long-tongued bat hovers while sipping with a skinny tongue tipped with nectar-catching micro-fingers.

Glenn Bartley: www.glennbartley.com

Flying forward is hard enough, but flying nowhere, just hovering, is so much harder. Most bats and birds can manage the feat for only a few frantic seconds.