HOW STUFF WORKS
QUIZZES

FOLLOW US
The Ultimate Octopus Quiz
by Staff
Octopuses are mysterious sea-creatures that always seem to intrigue young children. Octopuses are smarter and more talented than you may think. They even have a unique defense mechanism to protect them against predators. Take this quiz and learn about the mysteries of the octopus.

A male pillow octopus is ______ a female pillow octopus.

  • lighter than
  • heavier than
  • the same weight as

How do pillow octopuses mate?

  • The male octopus has sperm in his arm.
  • They mate with typical sex organs.
  • The male octopus has sperm in his head.

What does an octopus feel like?

  • a snake
  • the inside of your cheek
  • sand paper

Octopuses use their arms for:

  • moving around
  • tasting
  • both of the above

Octopuses are related to:

  • clams
  • snails
  • both of the above

Why are octopuses referred to as cephalopods?

  • because they have many long arms
  • because their arms protrude out of their head
  • both of the above

Octopuses have:

  • only arms
  • arms and tentacles
  • arms and antennas

What is found inside an octopus's mantle?

  • hearts
  • digestive system
  • both of the above

How do octopuses protect themselves from predators?

  • camouflage
  • a hard protective shell
  • poisonous arms

What color is octopus blood?

  • red
  • green
  • blue

How many hearts does an octopus have?

  • two
  • three
  • four

Chromatophores allow an octopus to:

  • reproduce
  • regenerate arms
  • change color

How quickly can an octopus change color?

  • less than a second
  • less than a minute
  • less than a hour

What are iridophores?

  • reflective cells
  • color cells
  • receptor cells

An octopus's eyesight is:

  • non-existent
  • mediocre
  • very good

An octopus's brain is:

  • very small
  • highly evolved
  • both of the above

An octopus's arms are mainly composed of:

  • muscle
  • fatty tissue
  • nerves

Octopuses are:

  • nomadic
  • nocturnal
  • both of the above

What is the activity level of a typical octopus?

  • very lazy
  • somewhat active
  • hyperactive

A typical octopus lives for:

  • a few years
  • many years
  • a few decades