450-million-year-old sea creatures had a leg up on breathing

A new study has found the first evidence of sophisticated breathing organs in 450-million-year-old sea creatures. Contrary to previous thought, trilobites were leg breathers, with structures resembling gills hanging off their ...

Scientists discover how trilobites survived environmental change

Scientists have worked out how one unusual species of trilobite—an ancient, sea-dwelling relative of spiders and lobsters—was able to defend itself against predators and survive a bumpy ride as Earth's oxygen levels fluctuated.

New eyes discovered in trilobites

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 of Cologne's Institute ...

Primordial 'hyper-eye' discovered

An international research team has found an eye system in trilobites of the suborder Phacopina from the Devonian (390 million years ago) that is unique in the animal kingdom: each of the about 200 lenses of a hyper-facet ...

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