This document provides an introduction to the field of linguistics. It discusses what linguistics is, some general principles of linguistics, and compares human and animal communication systems. Specifically, it covers the following key points:
1) Linguistics is the scientific study of language. It analyzes language at different levels including sounds, words, sentences, and discourse.
2) Human language has properties like arbitrariness, duality of patterning, displacement, productivity, and cultural transmission that distinguish it from animal communication systems, which tend to be more limited and instinctive.
3) The document compares features of human language and animal communication systems in areas like conveying messages, flexibility, reference, and