The Prophalangopsis obscura (P. obscura) is one of only eight remaining descendants of an ancient katydid family of over 90-known species that lived during the Jurassic period (199.6 million to 145.5 million years ago). However, there is only one known specimen of the grasshopper-like insect. It was discovered in India in the mid-1800s and later donated to London's Natural History Museum. Scientists have now digitally recreated the P. obscura's long-lost call in the hopes of locating the insects in the wild.