Across
- 2. caverna o cueva
- 3. océano
- 4. To stay in one place in the air
- 6. siglo
- 7. echo sound system that bats use
- 8. Gymnast (gimnasta en el aire)
- 9. Very small bird (colibri)
- 12. planeta
- 16. alas
- 17. sangre
Down
- 1. a sound bouncing to measure distance
- 3. the science of studying the ocean
- 5. bastante
- 10. Sweet water inside a flower (néctar)
- 11. the only flying mammal
- 13. siempre
- 14. ciego
- 15. sal