Millions of years ago, a giant walked the earth. Not a dinosaur: a penguin. New fossils—a wing and a tarsometatarsus, or a fused ankle and foot bone—discovered on Seymour Island off the Antarctica Peninsula reveal the size of Palaeeudyptes klekowskii, which lived there 37 million to 40 million years ago. This “colossus penguin” was 2 meters long and weighed 115 kilograms, New Scientist reports. Today’s penguins are puny by comparison: Emperor penguins (pictured), the largest living penguin species, weigh about 46 kilograms.