Is Your Horse Getting Too Much Sun?

…Scientists distinguish two kinds of photosensitivity, primary and secondary, and plants can be implicated in both. Primary photosensitivity results when a horse eats significant quantities of a plant that contains…

The Photography of Robert Vavra

…and Delacourt Press, which requested a Vavra photograph for the cover of Nicholas Evans’ The Horse Whisperer. “I guess I’m singular,” the photographer observes matter-of-factly. As candid as the horses…

How to spot photosensitivity

…In secondary photosensitivity, a horse’s damaged liver cannot filter out photodynamic compounds, leading to the same reaction. Plants that cause photosensitivity include alsike clover and Saint John’s wort. Photosensitive reactions…