Desert animals

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Across
  1. 3. I am a dog which can laugh
  2. 5. I can rattle my tail
  3. 6. I look like a lizard, but I am bigger
  4. 7. I am poisonous, and I can stab with my tail
Down
  1. 1. I am in the picture 1
  2. 2. I look like a dog or a fox with big ears
  3. 4. I have one or two humps on my back