Animals in danger

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Across
  1. 2. murder somebody
  2. 3. the fastest animal in the world
  3. 6. one of the biggest land animals in the world
Down
  1. 1. tigers have these on their body
  2. 4. a man who kill animals
  3. 5. something that weighs a lot
  4. 7. rhinos have this on their head