What is the secret to a long life? The heartbeat of some animals may hold a clue. We are consolidating reports of the heart rate and lifespan of as many vertebrate species as possible. Scanning through old books and papers, we have already found data on more than 150 species of mammals. Now we need your help tracking down records for species of birds, reptiles and fish!

A billion beats

Studies have concluded that all mammals get about a billion heartbeats per lifetime. They can use them at a rate of a thousand per minute, like the shrew, or space them out into slow, ponderous beats, over many years, as is the case for the Grey whale. But there are notable exceptions. Some species get more than their fair billion beats. The extent to which these species live beyond a billion beats must depend in part upon unique features of their biology. Whatever these features are, if we understood them, we might be able to figure out new ways to extend our own health, push our enfeebled and worn cells and hearts through a few more beats, maybe many. But first, we need heart rate data for as many species as possible.

We need data sleuths!

Our goal is to integrate the data from various sources into a single database, where they can be more readily accessible. The data we need may be one Google search away or buried deep within old work about unrelated topics.

To participate:

  1. Pick any species we don’t yet have in our database.
  2. Do some data sleuthing! Dig around in the literature for any study that recorded the species’ resting heart rate. We have some guidelines to get you started.
  3. Enter your record information into our online form!

Help us keep adding species datapoints to our figure!

Here’s what we’ve collected so far with your help


The Leaderboard


Most beats per minute

Etruscan Shrew

835 beats per minute! Wow!


Fewest beats per minute

Ornate Box Turtle

13.5 beats per minute. An easy beat to keep!


Most beats per lifetime

The amazing Homo sapiens

We win! Over 2.5 billion beats per life!


Fewest beats per lifetime

Ornate Box Turtle

Sorry guys, a measly 200 million beats.


Submit a new record!

Help us find new heart rate records! Once you locate a new record, submit it to our heart beat database. Need help getting started? Check out our short guide to doing literature searches. And don’t forget to refer to our list of completed records!

Who Got the Beat?

Big thanks to our most recent contributing citizen scientists!

Glass Frog

Pedro Lopez

American Crocodile

Daji Lymore


Rey David Cruz Vargas

American Bullfrog

Gwendolynne Reid

American White Pelican

Temidayo Ajasa

Gray Wolf

Trajen Womack


Iesha Young


Ariana Trotter

Beats per Life


Project Blog

(see more stories)

The Pump of Youth

Most people, at least in youth, hope to live forever. But we die. More than that, we die in predictable ways, perhaps more predictable than we might imagine. Compare species. […]

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10 Seconds

The human heart beats 12 times every 10 seconds to keep up with its tissue demands. But what about these guys? (reposted with permission from the amazing BuzzHootRoar).

Read More

Literature Search Tips

Fantastic! You’re ready to join us and dig up new heartrate records in the literature. But you’re no exactly sure where you should even start looking. Don’t worry, we’ve put together a quick guide to get you started. […]

Read More

Exploring the Heart

Check out Rob Dunn’s new book The Man Who Touched His Own Heart (available February 3rd, 2015) to learn the history and science of this amazing organ.

NPR’s Melissa Block talks to Rob about his new book, The Man Who Touched His Own Heart, a history of science and medicine’s efforts to understand the working of the human heart. Listen to the story on All Things Considered on NPR.

You can also read more in this online interview “A Heart-to-Heart with Rob Dunn.”