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Sea Snakes, Symbiosis And Coral Spawning

series: Jonathan Bird's Blue World

air date: 8/25/13 8:00 AM

Sea Snakes - Many people don't realize that there are snakes that live in the ocean. And believe it or not, they're actually considerably more venomous than land snakes! Jonathan travels to Australia and the Philippines to find these marine reptiles, and learns that they are completely harmless to divers. Symbiosis in the Sea - Animals in the sea have formed thousands of kinds of partnerships to survive. Some are mutualistic-good for both parties-but others are only good for one partner. In this science segment, Jonathan travels the world looking at fascinating and surprising underwater partnerships. Coral Spawning - How does an animal like coral that lives attached to the bottom (and can't move around) create new colonies far away? Jonathan spends a week in Bonaire studying coral spawning. He learns how these animals release eggs into the water at the right time of the year to create new coral colonies. But they only do it at night, and Jonathan's film expedition is a lot of work!

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