See the Most Bizarre and Beautiful Animal Eyes on Earth

See the Most Bizarre and Beautiful Animal Eyes on Earth

The first eyes probably appeared long before the Cambrian explosion that occurred from 541 million to 530 million years ago. Some of the earliest renditions might have been a simple pit eye, a kind of pit of tissue lined with light receptors, or what scientists call an eyespot, a simple region that detects light. Mossy New Caledonian gecko is the largest gecko species ever recorded—individuals grow up to 14 inches long. Wood louse spider: This species belongs to a relatively small number of spiders that have six eyes instead of eight. They lack the “principal eyes,” which convey color vision and higher spatial acuity in most species.

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