Forget glowing noses

During the summer, when the sun spends months above the horizon, the inner parts of the animals’ eyes, a structure called the tapetum lucidum, gleam a shimmering gold. But as the landscape dips into the perpetual darkness of winter, their eyes turn a rich blue.

~ Katherine J. Wu from,

Forget glowing noses; reindeer eyes are magic. This is a short, punchy, pop-sci article— and is exactly the sort of random, interesting thing I delight in trawling through RSS feeds to locate.