Uploaded June 2019 | Updated September 2026, 1 hour ago

---

A female elephant, Lanna, participates in a magnitude discrimination experimental condition trial with two experimenters (co-authors R.D. and L.N.T.). In this clip, Lanna, unlike Phuki, only investigates each bucket once before making a choice.

This video accompanies Plotnik et al. (2019). Elephants have a nose for quantity. PNAS: doi.org/10.1073/pnas.1818284116

See pnas.org/content/early/2019/05/28/1818284116 for study details!