Whale Shark - Planet Earth - BBC

Off the coast of Venezuela, we encounter the whale shark - the biggest of all the fish in the ocean. In this clip, a shoal of bait fish are using the whale shark as a protective shield. However, unexpected developments are about to take place when we encounter some yellow-finned tuna... Visit http://www.bbcearth.com for all the latest animal news and wildlife videos BBC Earth Facebook http:// ...