Papers from Sessions C06, C08, C14, C62 and WS32 grouped as 'Humans: Evolution and Environment' from the XV UISPP World Congress (Lisbon, 4-9 September 2006). Contents: 1) Authenticity in ancient human mitochondrial DNA studies: A review (Rafael Montiel); 2) Improving inferences on past human migrations: new data from complete mitochondrial sequencing studies (Luisa Pereira); 3) Bioarchaeology of the Sambaqui groups: skeletal morphology, physical stress and trauma (Claudia Rodrigues-Carvalho, Andrea Lessa and Sheila Mendonca de Souza); 4) Coastal versus Riverine Shellmound builders in Brazil:...