This video shows the beating of a zebrafish heart that has been treated with a compound, discovered in the lab of Randall Peterson, which makes the atrium beat twice for every beat of the ventricle.
The article you are attempting to read is Premium content which is only available to our online subscribers.
Subscribing to The Scientist is easy and inexpensive.
And you can choose from many options. Try us out with an online day pass starting at only $4.95. Or, get it all with unlimited online access to The Scientist Archive and door-to-door delivery of our monthly print magazine.
The Scientist also offers site licenses to institutions and organizations. When your librarian adds The Scientist to the library's collection, you can get unlimited online access through your place of work or study. Recommend The Scientist today