whatever you do, don't run

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Across
  1. 1. fun but can be scary and there are fires present
  2. 4. an expedition or voyage to observe animals
  3. 6. there are 54 countries in this
  4. 8. a visitor or traveler
  5. 10. big and hot, can be comforting but also disastrous
  6. 11. scary and they are under your bed or in your closet
  7. 12. tiny yet terrifying for most people and it could have wings
  8. 14. endless, full of mystery and unknown but can be fun to explore and either beautiful or ugly
  9. 15. fear of what could happen and feeling of uneasiness that could cause nausea or dizziness
  10. 17. fun, can be tiring, we do this a lot on a day to day basis and you have to use your legs to be able to do this
Down
  1. 2. there are variety of these things, they can be cute or intimidating and taxonomy is used to identify them
  2. 3. mostly required for long distance journeys
  3. 5. a rushing feeling that increases your heart rate
  4. 7. can help your way around and could be a mentor
  5. 9. requires a journey to be able to be experienced
  6. 13. tall and provides life
  7. 16. a loud intimidating sound made by some animals