Whale Sharks: Swim off the Yucatan Peninsula with friendly whale sharks, the world’s biggest fish. © Jurgen Freund / WWF-Canon
Visit www.worldwildlife.org/travel/ for more information.... more 
Whale Sharks: Swim off the Yucatan Peninsula with friendly whale sharks, the world’s biggest fish. © Jurgen Freund / WWF-Canon
Visit www.worldwildlife.org/travel/ for more information. less 
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| Photo By WWF / WWF
Thu, Mar 1, 2012 4:11 PM EST