At the frozen poles or the sultry tropics, the coasts of the Americas host some of the greatest spectacles on Earth. Witness the never-before-filmed birth of a lemon shark in the shallow waters of the Caribbean, and the shark's escape to the safety of the mangroves as a hurricane threatens. At the Falkland Islands in the southern end of the Americas, watch male gentoo penguins perform mating jigs to attract females. Farther north, plunge into the Sea of Cortez off the coast of Mexico, where hordes of voracious giant Humboldt squid cannibalize their kin. Swim alongside thousands of graceful mobula rays - each with a wingspan stretching almost ten feet - as they glide through the water and then leap through the air in a dazzling display. Dive with striped marlin around slopes of underwater volcanoes in a stunning feeding frenzy captured on film. And feast with grizzly bears as they devour a stranded humpback whale along the shore.moreless
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