[["Their hearts can beat as fast as 1,260 beats per minute, which is the rate measured in a Blue- throated Hummingbird, or as slow as 50-180 beats per minute on a cold night when they experience torpor, a hibernation-like state.", 73.0], ["about 1200 beats per minute", 57.0], ["Their hearts can beat as fast as 1,260 beats per minute, which is the rate measured in a Blue- throated Hummingbird, or as slow as 50-180 beats per minute on a cold night when they experience torpor, a hibernation-like state.", 19.0]]
what is the heart rate of a hummingbird
animals,hummingbirds,ostriches