For thousands of years, penguins have darted through the waters of the southern oceans, chasing fish and surfacing to nest on islands and landmasses sprinkled from the Galápagos to the Antarctic. Today there are around 20 penguin species, ranging from the playful Adelie to the stately Emperor. But there once were other penguins, including a previously unknown subspecies of dwarf yellow-eyed penguin in New Zealand.

You won’t be seeing it any time soon. It’s extinct, apparently wiped out by humans hundreds of years ago.

“We suspect that these Megadyptes penguins were on their way to becoming a full new species,” said Theresa Cole, a graduate student at University of Otago in New Zealand and co-author of a paper about this bird and another newly discovered extinct subspecies of crested penguin. “But they just didn’t get a chance, because people ate them.”