Nature

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Across
  1. 5. Passing malaria to humans
  2. 6. Has 3 hearts
  3. 7. Has 14000 teeth in total
  4. 9. Only bird to fly backwards
Down
  1. 1. A group of this animal is called a prickle
  2. 2. Only male species to experience pregnancy
  3. 3. Insect that tastes with their feet
  4. 4. Fastest growing plant
  5. 8. A bulletproof animal