Half a billion years ago, the first true eye emerged in Earth’s oceans. Fossils now reveal what that ancient crystal vision could actually see.

Trilobites, prehistoric sea creatures, had so-called median eyes, single eyes on their foreheads, in addition to their compound eyes, research conducted by Dr. Brigitte Schoenemann at the University ...

Microscopy revealed the stunning compound structure in trilobite eyes. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

A tiny crustacean darted through the water after its next meal more than 500 million years ago. And, based on fossils of the animal, it probably was able to see the movement of this tasty morsel ...

The extinct sea scorpion species Jaekelopterus rhenaniae had eyes comparable to those of today's horseshoe crabs. The two-and-a-half-meter predator was particularly apt at perceiving contrasts and ...

Here’s what compound eyes really do — and why flies see you in slow motion. In this episode of Big Ideas, Niba explores how insects actually see the world — from the structure of ommatidia to motion ...

Single lens eyes, like those in humans and many other animals, can create sharp images, but the compound eyes of insects and crustaceans have an edge when it comes to peripheral vision, light ...

This intricate structure of blue rods and red dots is a cross section through the eye of a damselfly. Insects’ compound eyes are structured very differently than the eyes of humans and other mammals, ...