The Chel snakehead, also known as the Channa amphibeus, hadn’t had a recorded sighting since the last of the specimens was collected between 1918 and 1933 in the Himalayan region of India. Scientists eventually gave up and determined that the species had gone extinct, according to a paper published recently in the journal Zootaxa.

Researchers have rediscovered a rare fish species presumed to be extinct after it was not seen for more than eight decades.