Smart squirrels use a mortise-tenon structure to fix nuts on understory twigs
H. Xu, L. Xia, J. R. Spence, M. Lin, C. Lu, Y. Li, J. Chen, T. Luo, Y. Li, S. Fang
The paper describes how two species of flying squirrels in Hainan Island use a mortise-tenon structure to securely cache nuts on twigs to deter predation and ensure food supply.
bioRxiv · Nov 20, 2022 · PreprintEcology