State Key Laboratory of Grassland and Agro-Ecosystems;
International Centre for Tibetan Plateau Ecosystem Management;
College of Ecology;
Lanzhou University;
Lanzhou 730000;
China;
State Key Laboratory of Grassland Agro-ecosystems;
College of Pastoral Agriculture Science and Technology;
Lanzhou University;
Lanzhou 730020;
China;
School of Public Health;
Lanzhou University;
Lanzhou 730000;
China;
Desert Animal Adaptations and Husbandry;
Wyler Department of Dryland Agriculture;
Blaustein Institutes for Desert Research;
Ben-Gurion University of Negev;
Beer Sheva 8410500;
Israel;
Yak; Adaptive strategy; Grazing behaviour; Nutrient metabolism; Gastrointestinal microbiome;