TY - RPRT TI - Threonine nitrogen isotopes reveal hidden physiological dimensions of mammalian ecology AU - Tejada, J. V. PY - 2026 DO - 10.64898/2026.08.14.744972 UR - https://www.biorxiv.org/content/10.64898/2026.08.14.744972v1 ID - 10.64898/2026.08.14.744972 ER -