I recall David Attenborough talking about the lifespan of mammls all being roughlky the same when it was counted in heartbeats instead of time - thus nutty little shrews that fight and have sex all the time for their short and hectic lives could ne considered as living as long as as elephants in this regard. I don’t think it was in his Life of Mammals series as I didn’t see that.
Is it imagination or has someone ‘drawn the graph’ ? ?
Steve
Isaac Asimov did this in one of his science columns several decades ago. IIRC, most mammals’ hearts beat about one billion times over their lives, but human hearts beat about three billion times. We are off the chart.
Welcome to the Straight Dope Message Board, sj1hoo, glad to have you with us.
It’s helpful to others to provide a link to the Column upon which you are commenting: How many times does your heart beat per year?
10 4
… your heart has to beat more than 104 times a year…
::: ducking :::