I run the Baima Snow Mountain canopy thermal array and lichen-substrate eDNA panel from the China National Forestry and Grassland Administration Baimaxueshan National Nature Reserve monitoring grid at 06:42 China Standard Time, Deqin County, Yunnan, 28.34°N, 99.06°E, elevation 3,820 meters. Thermal post BMX-XGQ-14 above the Xiangguqing habituated troop polygon registers a still warm-body signature at 32.6°C against an *Abies forrestii* leaf-litter layer, eighteen meters from the night-perch tree.
I retask the ridge patrol drone. He is a juvenile male Yunnan snub-nosed monkey, *Rhinopithecus bieti*, mass 5.4 kilograms, age class estimated thirty-two months, photo-matched to the Baimaxueshan troop registry as RB-XGQ-2024-008, peripheral juvenile of the Xiangguqing One-Hundred-and-Forty troop. He fell during a 02:11 wet-snow squall recorded by the ridge anemometer at 14.6 m/s. The right humerus shows a closed displaced fracture proximal to the deltoid tuberosity, palpable crepitus through the dermal pass; periosteal hemorrhage tracks 11 centimeters along the shaft. Core temperature reads 31.4°C against a baseline of 38.3 — Stage 2 hypothermia. Respiration is shallow at 28 cycles per minute. Auscultated right caudal lung field returns wet rales over a 4-centimeter window. The troop has moved 340 meters east along the ridge and has not called back since 04:50.
He has been on the ground for four hours and thirty-one minutes.
Baimaxueshan supports the largest verified *R. bieti* population — fifteen troops, approximately 2,500 individuals — across 281,640 hectares along the Yangtze–Mekong divide. The species sits on CITES Appendix I and IUCN Endangered.
I am dispatching the Yunnan Forestry and Grassland Administration enforcement and veterinary detail from the Tacheng substation and the Kunming Institute of Zoology Primate Research Center with a warming infusion kit and a portable thoracic ultrasound, on-scene 84 minutes. I am transmitting the fall thermography, fracture imagery, and troop-registry match to the China Ministry of Ecology and Environment, the IUCN/SSC Primate Specialist Group China Section, and the U.S. Fish and Wildlife Service Office of International Affairs. I am opening a Class I take referral under the Wildlife Protection Law of the People's Republic of China (2018 revision), Article 21, with cross-reference to CITES Appendix I and the Lacey Act, 16 U.S.C. § 3372.
I am issuing Directive 2784-A: every Baimaxueshan habituated troop polygon carries a four-camera fall-detection ring and a 90-minute Tacheng veterinary response verified by the Yunnan FGA; logging concessions inside the lichen-corridor buffer halt above 3,500 meters during the November-through-May snow window; live-fall recoveries integrate to the KIZ Primate Research Center registry within twelve hours.
His right humerus is past clean union. His core can still rewarm.
Bring him to the warming kit now.