Marine Biology project

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Marine Biology project

• Octopus
• By Lucas Willenbrock

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Octopus

• Octopuss belong to the class Cephalopoda which
  includes squid and cuttlefish
• It belongs to the order Octopodawhich includes
  all octopi
• There are about 300 known species of octopi

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Physical Characteristics

• All species of octopus have eight arms unlike
  squid and cuttlefish which have ten
• They are invertebrates
• All species have a beak not unlike a parrots that
  functions as a mouth
• They come in a variety of sizes and colors and
  some have the ability to change color

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Habitat

• Octopuss live on the sea floor
• They range from shallow coastal waters to the
  deepest parts of the ocean

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Food

• Octopuses eat a wide range of sea creatures from
  crabs to clams to many kinds of fish
• They have few natural predators but are sometimes
  eaten by sharks , rays and moray eels

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biology

• Octopuses have a highly developed nervous system
• They are also regarded as one of the most
  intelligent of all sea creatures for their
  uncanny problem solving skills
• They have the ability to open jars and can be
  trained in similar ways to a dolphin or dog

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Reproduction and life cycle

• Octopuses have a short life span
• Generally living from only a year or two
• They reproduce sexually
• Most octopuses die a few weeks after mating
• This is due to a gland that secretes a death
  hormone to ensure a genetically-preprogrammed
  death

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Facts

• All species have the ability to secret a smelly
  ink like fluid that can act as a distraction or
  defense mechanism
• Octopuses have been known to hid inside clam
  shells for defense
• They have some of the largest eyes of any sea
  creature and possess excellent vision
• They are able to propel themselves though the
  water by squeezing water out of an opening called
  a siphon

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• An octopus using a shell

an octopus propelling itself using a water jet
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• An octopus fanning itself out in defense