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Articles (1 - 20 of 22)

The mantis shrimp has 12 types of visual cones. Klaus Stiefel/Flickr

Inside the colourful world of animal vision

As humans, we live in a colourful world, but differences in visual systems means that not all animals see the world in the same way. Unlike other aspects of an object such as size or mass, colour is not…

‘Blind’ cells sense light

Melanopsin pigment in the eye could be more light sensitive than the pigment that allows for night vision, rhodopsin. A two-year…
When approaching a vertical surface, honey bees calibrate their speed to land safely. photophilde

How to land safely on a vertical surface, bee-style

Landing is arguably the most nerve-racking element of any flight. To execute a safe landing, a pilot needs to know the plane’s speed and its distance from the landing surface. The pilot’s challenge is…
With 16 photoreceptors to humans' three, mantis shrimp see the bigger picture. DiverKen

Mantis shrimp have the world’s best eyes – but why?

As humans, we experience an amazing world of colour, but what can other animals see? Some see much more than us, but how they use this vision is largely unknown. We see what we see because our eyes have…
Say that again? Hearing aids as fashion? Flickr/Dilliweed

Make hearing aids available on the high street to fight stigma

More than one in ten middle-aged people has difficulty following speech in noisy environments, according to an analysis of 165,000 people in the UK Biobank, a project following the health of half a million…

Fly larva brain makes up for poor vision

The fly larva brain’s ability to process visual information can make up for low visual input. Researchers discovered that…
Opsin genes, one of the building blocks of vision, first emerged roughly 700 million years ago. ~Dezz~

Eye to the past: vision may be older than previously thought

The eye is perhaps one of the best examples of Darwinian evolution. Incremental steps driven by natural selection have led to the evolution of this complex organ from its origin as a simple light-sensitive…
This is how a person without colour blindness would see these coloured test tubes. Bigstockphoto / Craig Colvin

Explainer: what is colour blindness?

Here are six test tubes filled with coloured dyes. How many different colours do you see? Most people say six, but some people would say only two or three. There are even some (very rare) people who see…
Could your brain be anticipating what’s there before you even turn your eyes? Joe Fakih Gomez Photography

Out of sight, but still in mind: the mysteries of peripheral vision

As you read this article your eyes will move so the words fall on the central part of your vision. This region is called the fovea and it has excellent resolution when compared to your peripheral vision…

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