Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Scatter plot of δ15N vs. δ13C values for the human skeleton and the faunal remains from Tianyuan Cave. Black diamond: Tianyuan 1; gray square: wild cat; gray triangles: sikka deer; open triangles: herbivores. Error bars indicate measurement errors.
