To avoid starving, this bat varies its heart rate from 1000 to 200 beats per minute
By Elizabeth PennisiSep. 22, 2017 , 8:00 AM
Bats in Panama live their lives on the edge of starvation. They fly all night in search of fig juice—burning precious fuel in the process—and if they fail, they can die. Now, ecologists have uncovered the secret of the bats’ success: They radically change their heart rates, revving them up like a human sprinter when flying, and damping them down like a long-distance runner when resting.
http://www.sciencemag.org/news/2017/09/avoid-starving-bat-varies-its-heart-rate-1000-200-beats-minute
