DNA Consultants’ blog

Read reviews of science articles, new research and news reports on ancestry testing, ancient DNA and popular genetics

Filipinos, Negritos and Austronesians


The Y-chromosome landscape of the Philippines: extensive heterogeneity and varying genetic affinities of Negrito and non-Negrito groups
Frederick Delfin1,2, Jazelyn M Salvador1, Gayvelline C Calacal1, Henry B Perdigon1, Kristina A Tabbada1, Lilian P Villamor1, Saturnina C Halos1, Ellen Gunnarsdóttir2, Sean Myles1,6, David A Hughes2, Shuhua Xu3, Li Jin3, Oscar Lao4, Manfred Kayser4, Matthew E Hurles5, Mark Stoneking2 and Maria Corazon A De Ungria1

On the Trail of Spider Woman


Thoughts about the origin of mitochondrial haplogroup B and Mother Earth symbolism among the Hopi, Zuni, Hohokam, Fremont Indians and others
I got a holiday present from my wife of an unusual little book titled On the Trail of Spider Woman. Petroglyphs, Pictographs, and Myths of the Southwest, by Carol Patterson-Rudolph (Santa Fe:  Ancient City Press, 1997). Putting this intriguing study together with a travel book by David Hatcher Childress, my son and I took a 4-day road trip into the homeland of the Indians credited with having the first civilization in the Southwest, a settled town life marked by desert agriculture, canals, pottery, baskets, ballcourts, plazas and adobe pueblos, pithouses and kivas.

Is Evolution Still Occurring? In New York? London?


What Happens When ‘Pressure of Natural Selection’ Ceases?Maybe I do not understand “classic Darwinism,” but I am puzzled by the claims of numerous articles in leading scientific journals that evolutionary change in human beings is “accelerating.”