Contact: Jyoti Madhusoodanan
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
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Related news release: Emperor penguins use sea ice to rest between long foraging periods