PaleontologybioRxiv
Preservation of collagen in the soft tissues of frozen mammoths
S. Hattori, T. Kiriyama-Tanaka, M. Kusubata…·H. Senoo
This study examines collagen preservation in frozen mammoth tissues, showing that collagen remains intact after 40,000 years in permafrost.
DOI 10.1371/journal.pone.0258699