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The nautilus evolved from one of the first mollusks.

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The nautilus does not have many predators, as it's hard shell protects them.

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The nautilus has been on earth for more than 500,000,000 years, and has changed very little.

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Unlike most species, the father will stay for the entire upbringing of the child. He will hunt for smaller ocean animals, and hold them in the leathery hood above the shell, he brings the meal back, shreds it with his beak, and feeds it to the young, while the females concentrate on finding a new home, and building a nest.

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Male Nautili, during reproduction time, will seek out unmated female Nautili. When they find a mate, the male nautilus will use its four reproductive tentacles to fertilize the female allowing for reproduction.

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Monterey Bay Aquarium Research Institute

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Chambered Nautilus jetting its descent back to the depths from which it came.

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When a nautilus cannot escape,the nautilus withdraws into its armor and seals the door with a tough, leathery hood.

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A nautilus will eat nearly anything if it is dead, and will hunt for small animals such as fish, shrimp, and occasionally, even another nautilus

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The Nautili habitat is the deep ocean, and they move to reefs when they need to hunt, or reproduce. This has remained unchanged in the nautilus lifetime. While it cannot live on land, it can survive without water for up to a week

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It's main feature is the brightly colored shell. The shell allows them to float by moving gas into it, then releasing it.

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The nautilus has an unusually long life span for a cephalopod. It takes several years to reach sexual maturity and may live more than 15 years.

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Jellyfish and Nautili survive in the same way. They use their tentacles to hunt, and when threatened, they rapidly inflated their shells, letting them escape by floating to the surface.

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The name "nautilus" originally referred to the pelagic octopuses of the genus Argonauta, otherwise known as paper nautiluses, as the ancients believed these animals used their two expanded arms as sailsh

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Free video about Nautilus. This free video was created for you by http://epsos.de and can be used for free under the creative commons license with the attribution of epSos.de as the original author of this Nautilus video. Thank you for supporting the creative commons movement !!

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Jaron Molter, MaKaley Johnson, Logan Baggarly, Jakob Quisenberry

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They move by inflating their shell and drifting with the currents. They also use their tentacles to "swim" backwards and away from any danger

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Nautilus: A cephalopod mollusk with a light external spiral shell and numerous short tentacles around the mouth.