Science, Tech & Environment  Scientist recreates sound of 165
million year-old insect   An illustration of the ancient
Jurassic forest where the katydid would have lived. (Contributed
photo.)  Scientists know a lot about the time when dinosaurs
roamed the earth. They’ve reconstructed fossils and entire eco-
systems.  Player utilities  But what they don’t know is what
those ancient forests sounded like. A new study published in the
Proceedings of the National Academy of Sciences offers a
whisper. Or perhaps it should be a chirp.  The study was
conducted by Fernando Montealegre-Zapata, a biologist at the
University of Bristol, in the United Kingdom. He studies how
crickets and katydids communicate with sound.  Last year, he
received an unusual request from some paleontologists in China.
They had unearthed the fossil of a 165-million-year-old katydid.
“They asked me if I will be able to estimate how this animal
[made] sounds – which frequencies this animal was using,”
Montealegre-Zapata said.  Male katydids (als