Scientists have reconstructed the first full skeleton of a giant prehistoric penguin called a Kairuku, which lived in New Zealand 26 million years ago.
The fully-assembled fossil skeleton reveals a bird about 4 feet, 2 inches tall, with long wings and a narrow, pointed bill, according to a paper authored by researchers from North Carolina State University and New Zealand's University of Otago.
The Kairuku would have been roughly a foot taller than modern-day emperor penguins, and weighed 132 lbs, 50% more than an emperor.
Its body shape and large size may have helped it dive deeper and swim farther than today's penguins, which would have been a necessity during the Oligocene period, when most of what is now New Zealand was still underwater.
The researchers say it's not clear how the penguins died out, but climate change, new predators, and competition for food from seals and other animals could all have factored in.