Eli5. What decides an animals longevity as for as mortality? A horse, way stronger and healthier than most humans, live only to around 20 to 30 years, yet the steady rate when humans expire is around 70 to 80 years. How does this work?
In: Biology
Mammals specifically have a heartbeat average. An average amount of total heartbeats over a lifespan across a species. It has proved pretty accurate. So if you know the average beats and average beats per minute this leads to average longevity. As to why I don’t know.
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