Horses were presented with symbols on a white wooden board. The horizontal bar on the left means “put blanket on,” the blank board in the middle means “no change,” and the vertical bar on the right means “take blanket off.” Image credit: Cecilie M. Mejdell.

Each of these horses had a blanket on and were given a choice of “blanket off” or “no change.” In the left and middle images, taken in winter, both horses touch the blank “no change” board. The image on the right, taken during milder weather, shows a horse selecting the “blanket off” symbol. Image credit: Cecilie M. Mejdell.

October 4, 2016

Like what you read?
Subscribe and receive daily news delivered to your inbox.

Your email address will only be used for EarthSky content. Privacy Policy
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

More from 

Shireen Gonzaga

View All