How Squids Outsmart their Predators (by Carly Anne York)

1) Watch the video and Key Word Outline the important parts to remember the many ways squids outsmart their predators.

A cephalopod is one of a class of mollusks that has tentacles attached to a its head.

 Mollusk: a type of invertebrate  Invertebrate: an animal without a backbone 

2) Be sure to answer the following questions and fill in the blanks where indicated:

1.  Is a squid a cephalopod?                      

2. What are the two titans that wage battle in the ocean's depth?

3. The sperm whale likes to eat giant squids. Do giant squids ever get away?

4. How do scientists know?

5. What is the size range of squids?

6. How many species of squid are there?

7. What is their first line of defense?

8. What is their second line of defense? (Hint: this secondary sensory system & allows them to sense oncoming predators even in dimmed waters)

9. What is another defense system of the squid that makes them hard to find?

10. If a squid is found by a whale using sound waves to find it, what does the squid eject to help protect itself?

11. What two things can the ink do to protect a squid? (3:32 to 3:52)

12. What type of propulsion does the squid use to help protect itself?

13. How many miles per hour can this enable them to propel?

14. They are Earth's fastest ______________.  <- Fill in the blank.

15. The deep-sea vampire squid can do what?

16. The tiny bobtail squid can do what?

17. The Pacific flying squid uses jet propulsion to do what?