Worksop Bestiary
ca. 1185
England, possibly in Lincoln or York
215 x 155 mm
MS M.81, fols. 18v–19r
Purchased by J. Pierpont Morgan (1837–1913) in 1902
Catalog link
Onager
This unnaturally green onager (wild ass) was thought to mark each hour by braying, prompting a comparison to the devil, “who knows how to make day and night the same.”