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It may sound unbelievable, but reindeer eyes change from a blazing gold in the summer to a deep, dark blue in the winter. However, this isn’t the kind of color change you might expect, as it ...

Not all reindeer eyes change color. To date, the phenomenon has only been observed in Arctic reindeer. This is due to the extreme environmental changes they experience at such high latitudes. Despite ...

Reindeer change the color of a reflective layer in their eyes between summer and winter to deal with months-long stretches of Arctic darkness. These animals in Norway are cared for by Sami herders ...

Two eyes are a typical number for most adult insects. It’s actually a misconception that insects tend to have more than two eyes; this trait is more common in spiders, crabs, and other arthropods.