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Read the story and answer the questions to test your comprehension.

Hatchetfish have huge fins on their backs connected to very powerful muscles. They swim right below the surface of the water and can sometimes launch themselves right out of the water and "fly" to catch insects. Because of this, their aquariums should have a tight lid to keep them from ending up on the floor!

  1. 1. What should a hatchetfish aquarium have?
    1. a. Rocks
    2. b. A lid
    3. c. A light
  2. 2. What can hatchetfish do?
    1. a. Fly
    2. b. Wiggle
    3. c. Dance
  3. 3. Where are the hatchetfish's most powerful fins?
    1. a. On their head
    2. b. On their backs
    3. c. On their side