A new find in Patagonia adds to the list of possible reasons for such extreme cranial modification
Artificial cranial deformation - Wikipedia
Strange Science: What is Evolution?
Parents Have Been Reshaping Their Kids' Skulls for 45,000 Years, Smart News
Is This a Photo of the Mangbetu Tribe That Practiced Head Elongation?
Artificial cranial deformation - Wikipedia
Head Binding & Elongated Skulls in Meso-American Culture: – Griff's Grotto
Cranial deformation: practiced by the Incas, it is also a universal custom - Université de Montpellier
Ring of Skulls: Ancient and Modern Sacrifices to the Water Gods
Two million-year-old skull of human cousin found in South African cave - CGTN