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Sea Animals
  
Killer Whalesby Fremlin on Flickr

  • Whales  grow inside their mothers until they are born. Besides, they are nursed and taken care by their mothers until they reach certain age.
  • They need to reach the surface of the ocean to breathe because they cannot breathe underwater.
  • Many whales are toothless.
  • Whales love to sing! They use this as a call to mates, a way to communicate and also just for fun!
  • Whales support many different types of life. Several creatures, such as barnacles and sea lice, attach themselves to the skin of whales and live there.
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Bora Bora Sharks!by jonrawlinson on Flickr

  • Sharks have a skeleton made up of cartilage; the same type of tough, flexible tissue that makes up human ears and noses.
  • Some sharks remain on the move for their entire lives. This forces water over their gills, delivering oxygen to the blood stream. If the shark stops moving then it will suffocate and die.
  • Sharks have outstanding hearing
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Dolphins in Pine Island Soundby pmarkham on Flickr

  • Dolphins are intelligent animals
  • They like to play
  • Dolphins use a blowhole on top of their head to breathe. 
  • Dolphins have an excellent eyesight, hearing and the ability to use echolocation for finding the exact location of objects.
  • Dolphins communicate with each other by clicking, whistling and other sounds.

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Honuby jurvetson on Flickr

  • Turtles have a hard shell that protects them like a shield, this upper shell is called ‘carapace’.

  • Turtles can hide their heads inside their shells when attacked by predators.

  • Turtles lay eggs.

  • Sea turtles have special glands which help remove salt from the water they drink.

  • Turtles are notoriously slow movers (having a giant shell doesn't help!).

  • Many turtle species are endangered.

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Submarine Ring of Fire 2002: Explorer Ridgeby NOAA, Ocean Explorer on Flickr

  • Octopuses are boneless creatures.  The beak, which has the shape of a parrot beak, is the only hard structure in their body. Due to this reason, their bodies are extremely flexible and they can squeeze through incredibly small spaces.
  • They hatch from the eggs
  • Octopuses may live in holes or crevices of rocks.
  • Octopuses vary in size depending upon the species. While those found in tropical waters are small, octopuses of the colder seas are larger in size.
  • Octopuses have 3 hearts - Two hearts pump blood through the gills whereas the third one pumps blood through rest of the body.
  • The color of octopus blood is blue.
  • Octopus is a predator. It hunts at night. Its favorite foods are crabs, mollusks and crayfish.
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It starts right here, in Maldivesby nattu on Flickr

  • Fish have gills that extract oxygen from the water around them.

  • There are fish in many colors and sizes

  • Some flatfish use camouflage to hide themselves on the ocean floor.

  • Fish are covered in scales which are often covered in a layer of slime to help their movement through water.

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Penguin Posingby Lord Biro on Flickr

  • Penguins are flightless birds.

  • While other birds have wings for flying, penguins have adapted flippers to help them swim in the water.

  • Most penguins live in the Southern Hemisphere.

  • No penguins live at the North Pole.

  • Penguins eat a range of fish and other sealife that they catch underwater.

  • Penguins can drink sea water.

  • Penguins spend around half their time in water and the other half on land.

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