Solutions for saving the Great Barrier Reef?

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One of the world’s seven natural wonders, the Great Barrier Reef contains some 900 islands and 3,000 smaller reefs.

It is larger than the UK, the Netherlands and Switzerland combined, home to around 10% of the world’s marine fish, over 200 bird species and countless other animals, including turtles and dolphins.

But this iconic reef system is facing unprecedented threats. Together with governments, scientists are playing a key role in the battle to preserve this vulnerable ecosystem before it’s too late.

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What Jaws Got Wrong

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Contrary to what popular movies like Jaws would have audiences believe, marine ecologist Neil Hammerschlag says that sharks pose only a very small risk to humans.

In fact, we're much more of a threat to sharks than they are to us. Hammerschlag estimates that 100 million sharks are killed every year, which, he says, is "not good for the functioning of marine ecosystems.".

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Scientists Learn that Sperm Whales Speak in Dialect

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Near the Caribbean island of Dominica, there is one group of sperm whales that has interested researchers for over a decade.

Like others in their species, they have complex social lives. But what makes this particular group special is that they live in small family units, allowing researchers to quickly identify individual whales.

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The Bizarre Look of a Hammerhead Shark

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Why do hammerhead sharks look that way ?

Their oddly-shaped heads could help them swim, or improve their vision, or any of a host of other things.

Reputation: The hammer-shaped head of hammerhead sharks improves their swimming performance. Or maybe it helps them handle prey. Perhaps it's all about binocular vision. Or could it have something to do with enhancing the detection of electrical signals or smells?

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