It’s a symphony out there. The players are crickets and their cuter green cousins, katydids.
Their instruments are their wings, specifically the tooth-covered stridulatory organ thereof, rubbed one against the other. Males play this instrument to attract females and repel other males.
Katydids, plant eaters, come in 6,400 species worldwide. Crickets, omnivores, are far fewer in species, with 900.
How many are playing near you we...