In winter, light in the northern latitudes is dim and very blue compared to summer light. Reindeer eyes have evolved to be better suited for this.
Reindeer's noses may not glow red, but these creatures of cold climes have evolved the ability to change the color of their eyes to help them thrive in dark, northern winters. In this Discovery episode, we speak with Glen Jeffery, a professor of neuroscience at the Institute of Opthamology at UCL in the U.K., about what makes reindeer eyes truly unique in the animal kingdom.
“I opened up the summer ones first and I thought, ‘I’m wasting my time here,’” says Jeffery. He saw golden eyes, just what he expected. This episode was produced by Katie Flood and hosted by Dan Merino. The interim executive producer is Mend Mariwany. Eloise Stevens does our sound design, and our theme music is by Neeta Sarl.
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