Evolution of Flight Crossword Puzzle

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Across
  1. 2. Animals/Insects started flying this many miilion years ago
  2. 3. This birds' feathers inspire drone designs
  3. 4. These can flatten their bodies and glide through the air
  4. 7. First animal to fly
  5. 9. All wings are similar because they all generate
  6. 10. This is the specific bird the Wright brothers studied to invent "wing warping"
Down
  1. 1. This a current example of how birds wings helped us develop cetain tech
  2. 5. Type of wings that are short and rounded
  3. 6. This insect lost it's ability to fly and starts with an f
  4. 8. What flying squirrels do