Hugh Bollinger / Tuesday, May 31, 2011 / Categories: Uncategorized A billion heartbeats I stumbled on this, from a story from a dozen years ago: As animals get bigger, from tiny shrew to huge blue whale, pulse rates slow down and life spans stretch out longer, conspiring so that the number of heartbeats during an average stay on Earth tends to be roughly the same, around a billion. A mouse just uses them up more quickly than an elephant. If that doesn't beat all. I'm going to look around for more references to this incredible idea -- that all animals get about a billion heartbeats during a lifetime, no matter what their size. It seems too wonderful to be true. - RC Previous Article Mountainfilm in Telluride Next Article Space odyssey Print 23 Rate this article: No rating Tags: reilly capps RiledUp a billion heartbeats biology elephants heart heartbeats Related articles A response to "moon truthers" Deadly priorities Goodbye shuttle The 'lazy-bones' theory of climate change 'Let's Move' program begins with individuals Please login or register to post comments.