How do otters talk to each other?

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Across
  1. 2. But most importantly, like humans, otters use a very ______ language when they communicate.
  2. 3. A mother otter may also ________ when she is cleaning her baby.
  3. 5. Zoologist say they have a lot in ________ with humans.
  4. 6. They can chirp like birds, ________ like pigs, and even hiss like snakes!
  5. 8. When otters are upset, they hiss and ________ loudly.
  6. 9. Their ________ are so loud that they can be heard from more than a mile away!
  7. 11. Some angry otters even hold up their front ________ to tell other animals to stay back!
  8. 13. Otters are fun-loving ________ mammals.
  9. 14. When an otter meets a new group of otters, it ________ them with a head nod.
Down
  1. 1. Most otters grunt when they are eating a yummy ________ of clams and crabs.
  2. 2. Otters ________ with one another by making different body movements and noises.
  3. 4. It raises its nose and smells the other otter while it is moving its head back and ________.
  4. 7. They also use ________ to hunt and eat food.
  5. 10. They love to slide around in the mud and ________ around in rivers.
  6. 12. Scientist think this is the ________ otters say "hello".
  7. 13. Each of these noises expresses a different ________.