Lizard

Latin name: Saura

Other names: Anguis, Lacertus

When the lizard goes blind, it looks to the rising sun

When the lizard goes blind, it goes to an opening in a wall that faces east, looks to the rising sun, and receives light.

Isidore of Seville [7th century CE] (Etymologies, Book 12, 4:34, 37): The lizard (lacertus) is so called because it has arms. As it ages it goes blind; as a cure it goes to an opening in a wall that faces east and looks at the sun, and gets light.