Animals in danger

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Across
  1. 4. when sy kills something
  2. 5. an animal's hair/skin
  3. 7. a study that scientists do
  4. 10. a kind of animal that is in danger
Down
  1. 1. a person who studies animals
  2. 2. a place where an animal lives
  3. 3. a part of a tree that animals eat
  4. 6. a part of an elephant it uses to eat and drink
  5. 8. to be frightened
  6. 9. to take an animal as yours