https://phys-org.cdn.ampproject.org/v/s/phys.org/news/2023-07-undocumented-prehistoric-languages-irregularities-current.amp?amp_gsa=1&_js_v=a9&usqp=mq331AQGsAEggAID#amp_tf=From%20%251%24s&aoh=16885355985379&csi=0&referrer=https%3A%2F%2Fwww.google.com&share=https%3A%2F%2Fphys.org%2Fnews%2F2023-07-undocumented-prehistoric-languages-irregularities-current.html
Fascinating stuff