Whales change their tunes when ships appear

By Susan Scutti, CNN

Updated 1803 GMT (0203 HKT) October 24, 2018

You may melt a little when encountering an Australian sea lion, also known as Labradors of the sea.
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Sea puppy – You may melt a little when encountering an Australian sea lion, also known as Labradors of the sea.
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The largest remaining colonies of Australian sea lions are found on the islands of South Australia. Among them, Hopkins Island is the the most accessible destination to see the adorable mammal.
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Australian sea lion – The largest remaining colonies of Australian sea lions are found on the islands of South Australia. Among them, Hopkins Island is the the most accessible destination to see the adorable mammal.
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Despite being the largest fish on the planet, the Whale Shark is a gentle swimming companion. South Ari Atoll, a ring of 120 sunny islets in the Maldives, is a regular hangout for these sea giants.
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Whale Shark – Despite being the largest fish on the planet, the Whale Shark is a gentle swimming companion. South Ari Atoll, a ring of 120 sunny islets in the Maldives, is a regular hangout for these sea giants.
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It's the stuff of nightmares for some, but encounters with the white shark can be as exhilarating as they are terrifying. Cage-diving expeditions for the brave are operated around the Neptune Islands -- a series of uninhabited islets 30 kilometers southeast of Cape Catastrophe in South Australia frequented by the sharks.
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White shark – It's the stuff of nightmares for some, but encounters with the white shark can be as exhilarating as they are terrifying. Cage-diving expeditions for the brave are operated around the Neptune Islands -- a series of uninhabited islets 30 kilometers southeast of Cape Catastrophe in South Australia frequented by the sharks.
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"The largest great whites are six meters long but it's their girth -- as wide as a van -- that took my breath away," says writer Ian Neubauer.
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As wide as an RV – "The largest great whites are six meters long but it's their girth -- as wide as a van -- that took my breath away," says writer Ian Neubauer.
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