lens

Not Exactly Rocket Science

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We spend a lot of time wondering about what other people think of us. Do they find us attractive, intelligent, capable or trustworthy? Considering how often we mull over such questions and how confidently we arrive at conclusions, we are remarkably bad at answering them. We have a nasty tendency to use our own minds…

Nocturnal animals face an obvious challenge: collecting enough light to see clearly in the dark. We know about many of their tricks. They have bigger eyes and wider pupils. They have a reflective layer behind their retina called the tapetum, which reflects any light that passes through back onto it. Their retinas are loaded with…

Spookfish eye uses mirrors instead of a lens

In the twilit waters of the deep ocean, beneath about 1000m of water, swims the brownsnout spookfish (Dolichopteryx longipes). Like many other deep-sea fish, the spookfish is adapted to make the most of what little light penetrates to these depths, but it does so with some of the strangest eyes in the animal kingdom. For…