# Sheep recognize familiar and unfamiliar human faces from two-dimensional images

> Research article (Royal Society Open Science, 2017) · cited 82× · AI/ML

**Wikidata**: [openalex:W2767510675](https://www.wikidata.org/wiki/openalex:W2767510675)  
**Source**: https://4ort.xyz/entity/sheep-recognize-familiar-and-unfamiliar-human-faces-from-two-dimensional-images