Происхождение языка

The study of the question of the origin of human language, or glottogenesis, is like a detective story: there are too many versions and pieces of evidence that need to be gathered bit by bit. Moreover, these bits come from... various sciences: anthropology, neurophysiology, ethology, archaeology, genetics, and, of course, linguistics.
In the book "The Origin of Language: Facts, Research, Hypotheses," linguist and Doctor of Philological Sciences Svetlana Burlak has collected data from all these sciences, explained it in simple terms, and put forth her hypothesis on the origin of language.
This is the second, expanded edition of the book. Ten years have passed since the release of the first edition. During this time, dozens of discoveries have been made in glottogenesis, and the question of the origin of language has become one of the trendiest areas of science. The new edition incorporates the latest scientific data, includes a new chapter, and the other chapters have been significantly expanded.
Why read it:
• Could only representatives of Homo sapiens speak?
• Why did ancient people need articulate speech?
• How are the communicative systems of animals similar to human ones?
• How does grammar work and how do we acquire it?
• Why do speakers of different languages have different brain structures?
• Was the human language originally unified, or did several proto-languages arise independently from each other at different ends of the planet?