Eyes have been around for a long time, like... half a billion years or so... and in that time, animals have evolved lots of amazing ways to observe the world around them!

Nature is full of all kinds of beautiful color, and there is plenty of weird science there too! Here's a showcase of a few of our episodes all about coloration.

Why Aren't Mammals More Colorful

Only a small part of what the eye 'sees' is in focus. To turn the image on the retina into complete vision the eye needs help from the brain. Biology - Being Human - Learning Points. The brain processes the raw information coming from...

The process of seeing is a collaboration between the brain and the eye. How does the eye work to create sight, from the lens and iris to the pupil, retina and optic nerve? Biology - Being Human - Learning Points. A far larger part of the...

This video covers

- The structure (anatomy) of th
e eye
- How the iris reflex works and allows us to respond to changes in light

intensity

Exam
board specific info:
AQA - Only
triple/separate science...

This video provides a concise explanation of color blindness, describing how it affects a person's ability to see certain colors and the role of cones in the eye. It also explains the different types of color blindness and the causes of...

The human eye is a wonderful feat of evolution. We can see tiny specks and huge mountains. We can see in the dark and we can also see hundreds of shades of bright, vibrant colours. So how does the eye work? The eye contains special cells...

Was the orange tree named after the colour or was the colour named after its fruit? And why are things certain colours anyway? How do our eyes see colour? And is it colour or color?