Jonathan Bird's Blue World

Mantas of Yap; Tropical Fish Rescue; Tiger Sharks (2x2)

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A visit to the Micronesian island of Yap to observe large gatherings of manta rays. Also: a New England Aquarium Dive Club mission off Rhode Island to catch tropical fish that, because of the gulf stream, are thousands of miles from their native waters; a Bahamian expedition to observe tiger sharks.