Relatively little is known about Africa's endangered languages. Unlike Australia, North Asia, and the Americas, where indigenous languages are predominantly threatened by colonizers, the most immediate and pressing threats to minority African languages are posed by other local languages. Therefore, the threat of language extinction is perceived as lower in Africa than in other parts of the globe. Consequently, in an era when linguists are racing against time to study and preserve the world's threatened languages before they go extinct, a disproportionate amount of research and funding are devoted to the study of endangered African languages when compared to any other linguistically threatened region in the world. There are approximately 308 highly endangered languages spoken in Africa (roughly 12% of all African languages) and at least 201 extinct African languages. This book puts some of Africa's many endangered languages in the spotlight in the hopes of challenging and reversing this trend. Both documentary and theoretical perspectives are taken with a view towards highlighting the symbiotic relationship between the two approaches, and its implications for the preservation of endangered languages, both in the African context and more broadly. The documentary-oriented articles deal with key issues in African language documentation including language preservation and revitalization, community activism, and data collection and dissemination methodologies, among others. The theoretically-oriented articles provide detailed descriptions and analyses of phonetic, phonological, morphological, syntactic, and semantic phenomena, and connect them to current theoretical issues and debates. Africa's Endangered Languages provides thorough coverage of a continent's neglected languages that will spur linguists and Africanists alike to work to protect them.

Headless relative clauses have received little attention in the linguistic literature, despite the many morpho-syntactic and semantic puzzles they raise. These clauses have been even more neglected in the study of Mesoamerican languages. Headless Relative Clauses in Mesoamerican Languages constitutes the first in-depth, systematic study of the topic. Spanning fifteen languages from five language families, it is the broadest crosslinguistic study of headless relative clauses yet conducted. For most of these languages there is no previous descriptive or documentary material on wh-constructions in general, let alone headless relative clauses. Many of the languages are threatened or endangered; all are understudied. Each chapter in this volume constitutes an original contribution to typological and theoretical linguistics. The first chapter provides a comprehensive introduction to the varieties of headless relative clauses and their importance to the study of human language, while the other chapters are language-specific and follow a uniform format to facilitate comparisons and generalizations across languages. Through the collective work of a team of twenty-one scholars, Headless Relative Clauses in Mesoamerican Languages presents a clear and systematic introduction to relative and interrogative clauses in Mesoamerican languages.