John Maisey

John Maisey appears in the following:

Please Explain: Sharks

Friday, September 25, 2009

There are some 440 species of sharks, and the fish have been swimming in the oceans for 420 million years, before dinosaurs existed. On today's Please Explain we'll find out about sharks, from hammerheads to great whites, and look at how they are becoming threatened. We're joined ...

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