Group of Emperor Penguins Synchronously Diving from Ice Edge (video) PLOS Share Print E-Mail Loading video... Caption This is a group of emperor penguins synchronously diving from ice edge. Credit Watanabe S, Sato K, Ponganis PJ (2012) Activity Time Budget during Foraging Trips of Emperor Penguins. PLoS ONE 7(11): e50357. doi:10.1371/journal.pone.0050357 Usage Restrictions With citation Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.