Across
- 2. theory about human language assumes that
- 3. Signaling behaviors and patterns of any animal
- 4. sounds.
- 8. language.
- 9. The loss of a language when its last native speakers
- 10. communication forms of other animals.
- 12. A communication method that uses spoken and
- 13. Refers to the communication system that preceded
Down
- 1. A set of unique properties that supposedly
- 5. language is unique and without evolutionary
- 6. all human language and separate it
- 7. out.
- 11. such as birdsong.