Kay, who has collected fossils of monkeys in South America since 1981, has worked with others in peripheral Amazon areas such as Chile and Argentina. By studying fossils from there and piecing ...

If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have ...

When you learned about the history of human evolution in school, there's a good chance you were shown one all-too-familiar image. That picture probably showed a conga line of human-like creatures, ...

Cover -- Contents -- List of Illustrations -- Preface -- CHAPTER 1. What Is a New World Monkey? -- What is a monkey? -- What is a platyrrhine? -- Platyrrhines and catarrhines -- Platyrrhine taxonomy - ...