GRACE
While in flight, the Hummingbirds' heart rate can reach as high as 1,260 beats per minute (once measured in a blue-throated hummingbird), with a respiration of 250 breaths per minute, even at rest.
GRACE
While in flight, the Hummingbirds' heart rate can reach as high as 1,260 beats per minute (once measured in a blue-throated hummingbird), with a respiration of 250 breaths per minute, even at rest.
