Assertion: blue whale's heart rate | /r/HasProperty | between 60 to 100 bpm
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Source sentences:
text: When the whale made a deep dive, its heart rate slowed to a crawl, beating around 4 to 8 beats per minute (bpm) on average, and sometimes as slow as two beats per minute (the normal resting heart rates for humans is between 60 to 100 bpm).