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Writing in the journal Nature this week, KU entomologist Michael Engel and an international research team have described the oldest definitive fleas to date: giant fleas from the Middle Jurassic and Early Cretaceous of China.

A University of Kansas researcher and scientists from China and the United Kingdom have again played what may be the world’s oldest love song.

Using an exquisitely preserved mid-Jurassic katydid fossil found in China, the researchers have recreated the insect’s mating call produced by “stridulation” — the rubbing together of musical wing parts. Their findings appear today in the Proceedings of the National Academy of Sciences.