Question 2 of 21

A male pillow octopus is ______ a female pillow octopus.

... A female pillow octopus is 40,000 times heavier than a male pillow octopus.

Question 3 of 21

How do pillow octopuses mate?

... The male octopus has sperm in one of his arms, which he actually tears off and gives to a female octopus. Talk about a romantic gift!

Question 4 of 21

What does an octopus feel like?

... An octopus feels like the inside of your cheek. An octopus is actually not slimy.

Question 5 of 21

Octopuses use their arms for:

... Octopuses arms are very versatile. They use their arms for moving around, feeling and tasting.

Question 6 of 21

Octopuses are related to:

... Octopuses belong to the phylum mollusca. Clams, snails and slugs are their closest relatives.

Question 7 of 21

Why are octopuses referred to as cephalopods?

... Cephalopod means “head-footed”. Therefore, octopuses are given the name cephalopod because their arms protrude directly from their head.

Question 8 of 21

Octopuses have:

... Many people make the mistake by saying octopuses have tentacles. In reality, octopuses only have arms, which they use to do just about everything.

Question 9 of 21

What is found inside an octopus's mantle?

... The mantle is a muscle-like structure where all of the octopus's organs are found, including the heart, digestive system and reproductive glands.

Question 10 of 21

How do octopuses protect themselves from predators?

... Chameleons can learn a thing or two from octopuses. Octopuses have sophisticated camouflage abilities.

Question 11 of 21

What color is octopus blood?

... Octopuses have blue blood, because a copper-containing protein binds to oxygen in their blood.

Question 12 of 21

How many hearts does an octopus have?

... An octopus's blood does a bad job of circulating oxygen. Therefore, octopuses need three hearts to ensure good oxygen circulation.

Question 13 of 21

Chromatophores allow an octopus to:

... Chromatophores are pigmented cells that are found all over an octopus's body. These cells contain three colors and allow the octopus to blend in with its surroundings.

Question 14 of 21

How quickly can an octopus change color?

... The color-changing quality of an octopus is controlled by the nervous system. This means an octopus can change color in less than a second.

Question 15 of 21

What are iridophores?

... The octopus also has numerous iridophores, which are reflective cells, all over its body. These reflective cells help accentuate the camouflage effect.

Question 16 of 21

An octopus's eyesight is:

... The anatomy of an octopus's eyes is similar to the human eye. Octopuses can easily see their prey and predators.

Question 17 of 21

An octopus's brain is:

... An octopus may have a small brain, but it has a rather complex nervous system.

Question 18 of 21

An octopus's arms are mainly composed of:

... Octopuses are very strong. Their arms are composed primarily of muscle, giving them the ability to tear through plexiglass.

Question 19 of 21

Octopuses are:

... Octopuses hunt for their food only at night and relocate their home every few weeks.

Question 20 of 21

What is the activity level of a typical octopus?

... Octopuses are known for being lazy, spending most of their time immobile in their den.

Question 21 of 21

A typical octopus lives for:

... Octopuses generally have a very short lifespan, about three to five years.