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Articles on Eyes

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When fish like this netted cod are exposed to mercury, it accumulates in certain organs, including the lenses of their eyes. Yvette Heimbrand

The lenses of fishes’ eyes record their lifetime exposure to toxic mercury, new research finds

A new study shows that a time stamp can be put on mercury that accumulates in fish eyes, offering a window into their lifetime exposure.
Electronic devices are not, in and of themselves, a source of visual problems. Using these devices inappropriately can interfere with the natural development of the eye, as well as reading and learning skills. Shutterstock

Development of vision in early childhood: No screens before age two

The impact of using electronic devices is critical during the first years of life, both visually and on the cognitive and social development of the child.
Whether in the wild or in the lab, worms have an interesting story to tell. Sinhyu/iStock via Getty Images

Why do scientists care about worms?

‘Worm’ is really a catchall term for a huge variety of animals with different characteristics that span the tree of life. They hold clues about our own origins as well as hints about human health.
The radiodont Anomalocaris, with its large stalked eyes, is considered a top predator that swam in the oceans more than 500 million years ago. Katrina Kenny

Freaky ‘frankenprawns’: ancient deep sea monsters called radiodonts had incredible vision that likely drove an evolutionary arms race

Our study on weird ancient marine animals called radiodonts supports the idea that vision played a crucial role during the Cambrian Explosion, a rapid burst of evolution about 500 million years ago.

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